Which statement describes a similarity between the diploid and haplo.pdf
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Which statement describes a similarity between the diploid and haploid phases of plant life? A zygote is formed ____. Human skin color is an example of ____, while sickle-cell anemia is an example of ____.both are multicellular Solution 1. both are multicellular. The plant life cycle alternates between haploid and diploid generations.Plants have multicellular haploid and multicellular diploid stages in their life cycle.Gametes develop in the multicellular haploid gametophyte.Fertilization gives rise to a multicellular diploid sporophyte,which produces haploid spores via meiosis. 2.Zygote is formed by the fusion of egg and sperm nuclei. In human fertilization,ovum which is a haploid secondary oocyte and a haploid sperm cell combine to form a single 2n diploid cell called the zygote. In fungi,the sexual fusion of haploid cells is called karyogamy.This cell may then enter meiosis or mitosis depending on the life cycle of the species. In plants,the zygote may be polyploid if fertilization occurs between meiotically unreduced gametes. Somatic cells are other than reproductive cells.Zygote formation occurs in reproductive cells. 3.Human skin color is an example of polygenic inheritance, while sickle-cell anemia is an example of pleiotropy. Polygenic inheritance occurs when one characteristic is controlled by two or more genes.Skin color is largely determined by the amount of melanin. Dark skinned individuals produce more melanin than light skinned individuals.At least three genes regulate the amount of melanin produced. Each gene has two forms: dark skin allele (A,B,and C) and light skin allele (a,b,and c). Pleiotropy occurs when variation at a single gene locus affects multiple aspects of the phenotype.Sickle cell anemia is a genetic disease that causes deformed red blood cells with a rigid,crescent shape instead of the normal flexible,round shape.It is caused by a change in one nucleotide in the HBB gene.Sickle cell anemia occurs when the HBB gene mutation causes both beta-globin subunits of hemoglobin to change into hemoglobin S..
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Answer:
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Solution
Q.No 1
Genetic drift is a mechanism of evolution of biological species that takes place because of the
change in the frequency of alleles in a population. These changes in the allele frequency in a
population occur randomly. One very common example to describe the genetic drift would be
that most of the human families have different number of boys and girls, as the X or Y alleles
have been passed differently into the new generation from the parents. Although the X and Y
alleles do not really contribute for the evolution, the frequency changes in other alleles would
have a considerable effect for evolution.
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population to another. It is also known as the Gene Migration, and that could cause changes in
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some good examples to support this phenomenon from humans regarding a developed immunity
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Q.No 2
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the individuals to their environment. Unlike sexual selection, natural selection acts on traits
which increase the fitness of members in a population. Certain adaptations have been derived
from the sexual selection which could never have been arisen from natural selection alone (Ex:
the neck of the giraffe, various plumages of most male birds etc.). Generally sexual selection
depends on the success of one sex while natural selection depends on the success of both sexes in
relation to the general condition of life. In most of the animals, certain traits related to their
sexual selection process do not express their characteristics until the organism is able to mate,
but naturally selected traits may occur at birth of the organism during the process of natural
selection.
Q.No 3
A ring species is a connected series of neighbouring populations, each of which can interbreed
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the series, which are too distantly related to interbreed, though there is a potential gene flow
between e.
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2. He found that for many traits, one gene variant (allele) is dominant and hides the expression of the other recessive allele.
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How has the rise of telehealth broadened the possibilities of what it means to be a nurse or health
care worker? What new settings and job descriptions have opened up and will continue to
expand in this field? What are some of the challenges associated with these exciting
opportunities?
*please answer with as much detail as possible and provide the links to the websites you used,
thank you!
Solution
It allows multiple, different disciplines to merge and deliver a uniform level of care with the
efficiency and accessibility of everyday technology in comparison with a nurse or a health care
worker. So many health care workers and nurse are provided opportunity as telehealth nurse. So
many work from home option for nurse is available where the women with small children can
utilize. Hence, so many work from home options have expanded. It provides timely and flexible
health care to the patients.
The challenges associated are the danger of need for physical examination particularly in
diagnosis, rehabilitation and metal health. Availing medical insurance through telehealth care is
limited. Availing informed consent from patients via telehealth care sector is a question mark.
Since the technology providers are also involved in the treatment system the privacy information
between the patient and the service provider is a question of contradiction. These are some of the
challenges associated with these exciting opportunities.
Reference
Laxman, Kumar (2015). \"Barriers to Adoption of Consumer Health Informatics Applications for
Health Self Management\". Health Science Journal.
Kvedar, Joseph; Coye, Molly Joel; Everett, Wendy (2014-02-01). \"Connected health: a review
of technologies and strategies to improve patient care with telemedicine and telehealth\". Health
Affairs.
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SOMEONE HELP: Complete sentences, stating the differences and relationships between the
two terms, and give specific examples where appropriate.
1. gene flow / genetic drift
2. sexual selection / artificial selection
3. ring species / biological species concept
4. hybrid inviability / temporal isolation
5. autopolyploidy / allopatric speciation
6. molecular clock / cladogram
7. gradualism / uniformitarianism
8. extreme thermophiles / viroids
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Solution
Q.No 1
Genetic drift is a mechanism of evolution of biological species that takes place because of the
change in the frequency of alleles in a population. These changes in the allele frequency in a
population occur randomly. One very common example to describe the genetic drift would be
that most of the human families have different number of boys and girls, as the X or Y alleles
have been passed differently into the new generation from the parents. Although the X and Y
alleles do not really contribute for the evolution, the frequency changes in other alleles would
have a considerable effect for evolution.
Gene flow is a process of evolution that takes place when genes or alleles move from one
population to another. It is also known as the Gene Migration, and that could cause changes in
the allele frequency as well as some variations in the gene pool of both populations. There are
some good examples to support this phenomenon from humans regarding a developed immunity
for malaria among new Western Africans after their parents mated with Europeans who initially
had the immunity. It is interesting to notice that gene flow could take place between two species,
as well.
Q.No 2
Sexual selection enhances mating success or the number of copulations, while natural selection
tends to produce well-adapted individuals to their environment. Sexual selection does not adapt
the individuals to their environment. Unlike sexual selection, natural selection acts on traits
which increase the fitness of members in a population. Certain adaptations have been derived
from the sexual selection which could never have been arisen from natural selection alone (Ex:
the neck of the giraffe, various plumages of most male birds etc.). Generally sexual selection
depends on the success of one sex while natural selection depends on the success of both sexes in
relation to the general condition of life. In most of the animals, certain traits related to their
sexual selection process do not express their characteristics until the organism is able to mate,
but naturally selected traits may occur at birth of the organism during the process of natural
selection.
Q.No 3
A ring species is a connected series of neighbouring populations, each of which can interbreed
with closely sited related populations, but for which there exist at least two \"end\" populations in
the series, which are too distantly related to interbreed, though there is a potential gene flow
between e.
Biology - Chp 11 - Introduction To Genetics - PowerPoint
This document provides an overview of Gregor Mendel's experiments with pea plants and his discoveries of basic principles of genetics and heredity. The key points are:
1. Mendel studied inheritance of traits in pea plants and discovered that traits are passed from parents to offspring via discrete units later called "genes".
2. He found that for many traits, one gene variant (allele) is dominant and hides the expression of the other recessive allele.
3. Through experiments with successive generations, he showed that alleles segregate and assort independently during reproduction, allowing previously hidden recessive traits to reappear according to predictable statistical patterns.
genometrics pathogenesis.pptx
This document provides an overview of genetic disorders, including:
- Genetic disorders can be caused by abnormalities in a single gene (single-gene disorders), chromosomes (chromosomal disorders), or multiple factors (multifactorial disorders).
- Single-gene disorders include autosomal dominant disorders, where one copy of an abnormal gene causes disease, autosomal recessive disorders, which require two copies to cause disease, and X-linked disorders, which mainly affect males.
- Examples of genetic disorders discussed include sickle cell disease, cystic fibrosis, Tay-Sachs disease, and phenylketonuria.
- Autosomal dominant, recessive, and X-linked disorders are described in terms
Genetic
This document discusses human genetics and genetic disorders. It begins by noting statistics on genetic abnormalities in newborns and diseases with a genetic component. It then defines genetics, genomics, proteomics, and single nucleotide polymorphisms. The rest of the document discusses molecular bases of human disease including functional and positional cloning. It classifies human diseases and discusses mutations, Mendelian disorders, X-linked disorders, and autosomal dominant and recessive patterns of inheritance. Key points covered include definitions of genetic terms, Mendel's laws of inheritance, mechanisms of various disorders, and inheritance patterns.
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Biology - Chp 11 - Introduction To Genetics - PowerPoint
Biology - Chp 11 - Introduction To Genetics - PowerPoint
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How has the rise of telehealth broadened the possibilities of what i.pdf
How has the rise of telehealth broadened the possibilities of what it means to be a nurse or health
care worker? What new settings and job descriptions have opened up and will continue to
expand in this field? What are some of the challenges associated with these exciting
opportunities?
*please answer with as much detail as possible and provide the links to the websites you used,
thank you!
Solution
It allows multiple, different disciplines to merge and deliver a uniform level of care with the
efficiency and accessibility of everyday technology in comparison with a nurse or a health care
worker. So many health care workers and nurse are provided opportunity as telehealth nurse. So
many work from home option for nurse is available where the women with small children can
utilize. Hence, so many work from home options have expanded. It provides timely and flexible
health care to the patients.
The challenges associated are the danger of need for physical examination particularly in
diagnosis, rehabilitation and metal health. Availing medical insurance through telehealth care is
limited. Availing informed consent from patients via telehealth care sector is a question mark.
Since the technology providers are also involved in the treatment system the privacy information
between the patient and the service provider is a question of contradiction. These are some of the
challenges associated with these exciting opportunities.
Reference
Laxman, Kumar (2015). \"Barriers to Adoption of Consumer Health Informatics Applications for
Health Self Management\". Health Science Journal.
Kvedar, Joseph; Coye, Molly Joel; Everett, Wendy (2014-02-01). \"Connected health: a review
of technologies and strategies to improve patient care with telemedicine and telehealth\". Health
Affairs.
how do you convert analog signals to digital signalsSolutionTh.pdf
how do you convert analog signals to digital signals
Solution
The signal available in nature is generally in the form of sinusoidal i.e., analog signals. But,
today\'s technology needs every processing in digital in nature. Hence, it is required to convert
analog signals into digital signals. It is done by means of A/D convertor i.e., Analog to Digital
convertor.
Types of a/Dconvertors.
1. Flash type
2. Successive approximation type
3. Dual slope method etc....
Fair TradeoffsIf they want to work for us … they must see that t.pdf
Fair Tradeoffs
\"If they want to work for us … they must see that these are Numi’s values.\"
— Brian Durkee, Director of Operations, Numi Organic Tea
Now that we’ve been on the subject of organizational behavior for some time, perhaps this video
provides a good opportunity to make sure that we know just what an \"organization\" is. For an
official definition, we need only glance ahead to Chapter 16, where we find that an organization
is a goal-directed group of people who perform activities according to certain processes and
systems. A further look ahead, to Chapter 17, informs us that organizations exist in
environments, which include all of the elements, from people to economic conditions, that lie
outside the organization. One of these environments, the task environment, includes all the
specific organizations and groups that can influence an organization.
So far, so good. In order to understand the issues being discussed in this video, we need to know
just two more things:
The task environment includes suppliers—other organizations that provide the resources that an
organization needs to conduct its operations.
An organization’s suppliers belong to its supply chain—the chain of operations stretching from
the organization’s purchase of needed resources to the sale of its finished products to consumers.
Its supply chain, then, lies outside the organization, but it must be managed from within. In
effect, managing its supply chain extends an organization’s influence beyond its own boundaries
and into the realm of its external environment.
At Numi Organic Tea, which specializes in premium-quality, full-leaf organic teas, the person
responsible for managing the supply chain is Director of Operations Brian Durkee. Numi’s
supply chain begins in Asia—primarily, though by no means exclusively, in China—and Durkee
says that one of his \"biggest challenges in China is getting the people … and the managers of
the factories to understand how we want things done.\" How does Numi want things done? Or, to
put the same question another way: What does it require its suppliers to do? \"We’re a triple-
bottom-line company,\" says Durkee. \"Our focus is on people, planet, and profit…. [We want]
to make sure that our quality is there,\" but it’s also imperative that tea suppliers \"meet the level
of sustainability we expect in the supply chain.\" Sustainability—fostering conditions under
which natural resources are available to meet the social and economic needs of both present and
future generations—ranks very high on Numi’s list of policies that the company and its business
partners must practice.
\"My personal goal for Numi,\" says Durkee, \"is to become among the elite as far as how we
manage our supply chain. We’re looking at the most sustainable methods of packaging our
goods, transporting our goods, and producing our goods.\" If suppliers, he adds, \"want to work
for us … they must see that these are Numi’s values…. How are they handling their waste? How.
Direction of shell coiling in Lymnaeaperegra is strongly and most di.pdf
Direction of shell coiling in Lymnaeaperegra is strongly and most directly influenced
by_______.the phenotype of the motherthe genotype of the embryo itselfthe phenotype of the
fatherthe genotype of the fatherthe genotype of the mother
Solution
Answer : The correc answer is E (Genotype of the mother)
Explanation : This is an example of maternal inheritance which are controlled by organelle
genomes (mitochondria in animals and chloroplasts in plants..
f(x) = 2x^2 = f(x) = 2x^2 original function f(x) = x^2 Describe the.pdf
f(x) = 2x^2 => f(x) = 2x^2 original function f(x) = x^2 Describe the graph and function
behavior after the x is added. Explain in terms of function, inputs, outputs, and the graph.
Solution
Every value of y doubles. The graph looks like cup which gets narrower at the top.
The original graph is the first graph
The second graph is obtained by multplying 2.
Describe the quaternary structure of insulin, including disulfide bo.pdf
Describe the quaternary structure of insulin, including disulfide bonding. (h) In solution, two
molecules of insulin form a hydrogen bonded pair. What is the new quaternary structure? NOTE:
this is an active, blood-soluble form of the molecule. (i) In the presence of divalent cations, such
as Zn2+, six molecules of insulin form a new, non-water-soluble mass. What is the quaternary
structure of this new protein, which is much less clinically useful than the first one?
Solution
INSULIN: The lack of insulin causes a form of diabetes.Insulin is a hormone made by
pancreas by the islets of Langerhans, which regulates the amount of glucose in the blood.
Quarternary structure of insulin:Hormone insulin consisting of two polypepetide chains.Due to
interaction between hydrophobic surfaces insulin can form into granules consisting of
hexamers.Insulin can form into dimers.doughnut shaped form is the one in which insulin is
stored in the beta cells and secreted through blood stream.
The presence of zn2+ in granules to the capacity of insulin and its precursorsto bind cation with a
high affinity.zn2+ promotes the formation of insulin and makes crystallization and
precipitation.In the presence of divalent cations the new protein formed is a hexamer itself have
six subunits..
DNS play an important role in a network. It is therefore important f.pdf
DNS play an important role in a network. It is therefore important for the information in a DNS
table to be protected from authorized modification.
Write your paper on protecting the information in a DNS table.
Solution
The DNS protocol leverages the User Datagram Protocol (UDP) for the majority of its
operations. UDP is a connectionless protocol and, as such, it can be easily spoofed. Many of the
attacks described in this document rely on spoofing to be successful.
Several security controls can be implemented to limit spoofing. These controls are described in
the following sections.
Unicast Reverse Path Forwarding
Unicast Reverse Path Forwarding (Unicast RPF) is a feature that can reduce the effectiveness of
packets with spoofed source addresses. A network device using Unicast RPF evaluates the
source of each IP packet against its local routing table in order to determine source address
validity. While it can detect and filter some spoofed traffic, Unicast RPF does not provide
complete protection against spoofing because spoofed and valid packets with the same source
address may arrive on the same interface.
Unicast RPF operates in two modes: strict and loose. In strict mode, the Unicast RPF feature uses
the local routing table to determine if the source address within a packet is reachable through the
interface on which the packet was received. If it is reachable, the packet is permitted; if it was
not, the packet is dropped. Strict mode Unicast RPF is best deployed on network boundaries
where traffic asymmetry is not prevalent.
Strict mode Unicast RPF is enabled on Cisco IOS devices using the interface configuration
command ip verify unicast source reachable-via rx; the previous format of this command was ip
verify unicast reverse-path. Strict mode Unicast RPF can be enabled on the Cisco PIX, ASA, and
FWSM firewalls using the ip verify reverse-path interface interface configuration command.
In loose mode Unicast RPF, if the source address of a packet is reachable through any interface
on the Unicast RPF enabled device, the packet is permitted. If the source address of the IP packet
is not present in the routing table, the packet is dropped. Loose mode Unicast RPF can be
enabled on Cisco IOS devices using the ip verify source reachable-via any interface
configuration command; loose mode Unicast RPF is not available on Cisco PIX, ASA or FWSM
firewalls.
More information about Unicast RPF is available in the Applied Intelligence Understanding
Unicast Reverse Path Forwarding white paper.
IP Source Guard
IP source guard is a Layer 2 security feature that builds upon Unicast RPF and DHCP snooping
to filter spoofed traffic on individual switch ports. DHCP snooping, which is a prerequisite of IP
source guard, inspects DHCP traffic within a VLAN to understand which IP addresses have been
assigned to which network devices on which physical switch port. Once this information has
been gathered and stored in the DHCP snooping bindings table, IP source g.
Discuss the components and purpose of types of leaves-of-absence, in.pdf
Discuss the components and purpose of types of leaves-of-absence, including FMLA, military,
personal, and sabbaticals. If the leave type is mandated by law, discuss the employer
responsibilities and benefits to the employee.
HERE IS AN EXAMPLE OF HOW IT SHOULD BE FORMATTED:
FMLA
Components
“Provides certain employees with up to 12 weeks of unpaid, job-protected leave per year” and
protects group health benefits during the leave;
Applies to public agencies, schools, and companies with greater than 50 employees; and
Employees are eligible if they have worked for the company for more than 12 months and 1,250
hours over the last 12 months (United States Department of Labor, n.d.)
Purpose
“To help employees balance their work and family responsibilities by allowing them to take
reasonable unpaid leave for certain family and medical reasons” including the birth of a child,
adoption, and caring for self or a family member.
“It also seeks to accommodate the legitimate interests of employers and promote equal
employment opportunity for men and women” (United States Department of Labor, n.d.)
Mandated by law– yes, Family and Medical Leave Act of 1993
Employer Responsibilities
Post a general notice in the form of an FMLA poster;
“Provide employees with a general notice about the FMLA;
Notify employees concerning their eligibility status and rights and responsibilities under the
FMLA; and
Notify employees whether specific leave is designated as FMLA leave and the amount of time
that will count against their FMLA leave entitlement” (United States Department of Labor, n.d.)
Benefits to Employees
Allows time off for certain family and medical reasons;
Protects their group health benefits from being terminated while they are on leave;
Protects other benefits received by the employee;
Protects their job while on leave (ie, they must be restored to the same or equivalent job when
they return); and
Protects other benefits such as unconditional pay increases, bonuses or payments (United States
Department of Labor, n.d.)
Solution
Discuss the components and purpose of types of leaves-of-absence, including FMLA, military,
personal, and sabbaticals. If the leave type is mandated by law, discuss the employer
responsibilities and benefits to the employee.
Answer:
FMLA
The Family and Medical Leave Act
Components :
The Family and Medical Leave Act (“FMLA”), which allows employees time off from their job
to bond with their children, care for ill family members, or recover from their own serious health
problems — all without fear of losing their job. The FMLA entitles employees to a total of 12
weeks of unpaid leave during a 12-month period .
The FMLA entitles those who have taken leave under the law to return to their previous job,or to
an equivalent job with the same pay, benefits, and other conditions. Employers who provide
health insurance must also continue to pay their share of the health insurance premium for
employees on FMLA leave.
Care for newborn or newly adopt.
Compare and contrast the properties of a centralized and a distribut.pdf
Compare and contrast the properties of a centralized and a distributed routing algorithm. Give an
example of a routing protocol that takes a centralized and a decentralized approach.
Solution
Centralized: Central node in the network gets entire information about the network topology,
about the traffic and about other nodes. This then transmits this information to the respective
routers. The advantage of this is that only one node is required to keep the information. The
disadvantage is that if the central node goes down the entire network is down, i.e. single point of
failure.
Distributed: Node receives information from its neighbouring nodes and then takes the decision
about which way to send the packet. The disadvantage is that if in between the the interval it
receives information and sends the paket something changes then the packet may be delayed.
LinkState takes Centralzied approach
Distance Vector takes Decentralzied approach.
Baby Billy-Bob has a difficult infant temperament.His parents try .pdf
Baby Billy-Bob has a difficult infant temperament.
His parents try to be understanding and patient with him, but generally his behavior can be
described in terms of?
options:
moodiness, relative inactivity, and irregularity in daily routine.
high levels of activity, but unresponsiveness to changes in routine.
negative reactions to changes in routine, irritability, and difficulty being consoled.
openness to new experiences, but irregular feeding and sleeping habits.
Solution
The behaviour can be described in terms of moodiness, relative inactivity, and irregularity in
daily routine.
Approximately 10% of babies and children have a difficult temperament, which means that they
withdraw from or are slow to adapt to new situations, they have intense reactions, they have
irregular routines, and they have a negative mood..
A plane left at 3pm flying west at 450 miles per hour. At 330 pm an.pdf
A plane left at 3pm flying west at 450 miles per hour. At 3:30 pm another plane left the same
airport flying west at 500 miles per hour. At what time did the second plane overtake the first
plane?
Solution
first plane speed 450 mph
second plane speed 500 mph
rt=d
RT=D
30 minutes head start=1/2 hour
450*(t+1/2)=500(t)divide by 50
9*(t+1/2)=10t
9t+4.5=10t
simplify
4.5 hours =t
They pass at 7:30 pm.
A man with polydacytly, an autosomal dominant trait, marries a woman.pdf
A man with polydacytly, an autosomal dominant trait, marries a woman who is normal. They
have four children, and two of them also have polydactyly. The father has ten fingers and eleven
toes, and two of his children inherited the allele for polydactyly from him. A son has twelve
fingers and ten toes, and a daughter has eleven fingers and eleven toes. Polydactyly in this family
is a good example of _____. Question 13 options: A) incomplete penetrance B) polygenic
inheritance C) pleiotropy D) variable expressivity E) incomplete dominance Save
Solution
Answer: D) variable expressivity
Some genetic disorders exhibit little variation, most have signs and symptoms that differ among
affected individuals. Variable expressivity refers to the range of signs and symptoms that can
occur in different people with the same genetic condition..
1. Marvin is the executor and some heir of his aunts estate. The e.pdf
1. Marvin is the executor and some heir of his aunt\'s estate. The estate includes her furnished
home, which Marvin is considering converting to rental property to generate additional cash
flow.What are some of the tax problems Marvin may confront?
2. How does pay-as-you-go procedure apply to wage earners?To persons who have income from
sources other than wages?
3. Address the following issues.
a. What is the purpose of the unified transfer tax credit?
b. Is the same amount available for both the federal gift tax and the state tax?Explain
c. Does the use of the credit for a gift affect the amount of credit available for the estate
tax?Explain.
Solution
Here Marvin is subject to an estate tax by the Federal government as well as the inheritance tax
by the state government.There will be an increase of ad valorem tax on realty when Marvin
convert the property from residential to the income generating source. By adverse property tax
consequences, the tax results could be diminished. so there would be several tax issues with this
exchange..
___ is a type of homoplasy that reflects the independent evolution o.pdf
___ is a type of homoplasy that reflects the independent evolution of a trait in more that one
taxon.
Solution
Answer : Convergent evolution is a type of homoplasy that reflects the independent evolution of
a trait in more than one taxon.
Convergent evolution is the independent evolution of similar features in species of different
lineages. Convergent evolution creates analogous structures that have simiar form or function but
were not present in the last common ancestor of those groups. The clasdistic term for the same
phenomenon is homoplasy..
Year-end interfund receivable or payable balances will appear in the.pdf
Year-end interfund receivable or payable balances will appear in the line item internal balances
within their respective columns on the government-wide statement of net position. True or False?
Solution
Year end interfund receivable or payable balances will appear in the item internal balances
within their respective
columns on the government wide statement of net position.
This Statement is TRUE..
Which isare true regarding the lipid bilayerA. It is modeled as .pdf
Which is/are true regarding the lipid bilayer?
A. It is modeled as a capacitor in the equivalent circuit of a cell membrane.
B. Ions can freely permeate and pass through the lipid bilayer.
C. Protein mobility in the lipid bilayer can be restricted by the lipid composition or tethering to
the cytoskeleton.
D. All of the above.
E. A & C only.
Solution
C.Protein mobility in the lipid bilayer can be restricted by the lipid composition or tethering to
the cytoskeleton..
Which of the following isareTRUEI. A field can possess zero divi.pdf
Which of the following is/areTRUE?
I. A field can possess zero divisors.
II. Every integral domain is a field.
III. The union of two subrings is always a subring
IV. Every field is an integral domain.
Solution
option (iv) is true.
becuause
if R is a field, then there is no zero divisor in R.
Integral domain that is not a field.
and the union of two subrings is generally not a subring..
Which of the groups below are hydrophobic Hydrophilic Explain .pdf
Which of the groups below are hydrophobic? Hydrophilic? Explain
Solution
4. ANS:
Polar and non- polar characteristics:
Polar molecules contain positive charge on one end and negative charge in other end. Polar
molecules share electrons un equally. Molecule with more polar parts less non polar Polar
molecules can easily soluble in water, so these are called as hydrophilic molecules. (At poles
both + Ve and -Ve charges are present).
Non-polar molecules contain same charges on both poles, so bonding is not possible. These are
not soluble in water. The molecule with mostly non polar (hydrocarbon) part shows hydrophobic
interactions. (At poles same charge + Ve and + Ve or –Ve and - Ve are present).
Hydrophilic compound:
A. The compound A only can capable to produce hydrophilic interactions. It is because on this
compound
Long carbon chains, carbon rings and non-polar covalent linkages are absent.
Hydrophobic compound:
B. The compound B only can capable to produce hydrophobic interactions. It is because on this
compound hydrophilic groups are absent..
Which function has a domain of all real numbers A. y = secx B. y =.pdf
Which function has a domain of all real numbers? A. y = secx B. y = cosx C. y = tanx D. y =
1/sin x
Solution
Functions sec(x) and tan(x) are not defined when x = (2n+1)/2 (where n is an integer)
Similarly, function 1/sin(x) is not defined when x = n (where n is an integer)
Cos(x) is defined for all the real values of x
Hence, the only option that has domain of all real numbers is function y = cos(x).
Option B.
When 3013 adults were survery in a poll, 73 said they use the Inter.pdf
When 3013 adults were survery in a poll, 73% said they use the Internet. is it okay for a
newspaper reporter to write that 3/4 of all adults use the Internet? why or why not? identify the
null hypothesis, alternative hypothesis,test statistics, p-value, conclusion about the null
hypothesis and final conclusion that addresses the original claim. use the p-value method. Use
the normal distribution as an approximation of the binomial distribution.
Solution.
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environment for investigating the changes in vegetation cover dynamics. Our study utilizes
advanced technologies such as GIS (Geographic Information Systems) and Remote sensing to
analyze the transformations that have taken place over the course of a decade.
The complex relationship between human activities and the environment has been the focus
of extensive research and worry. As the global community grapples with swift urbanization,
population expansion, and economic progress, the effects on natural ecosystems are becoming
more evident. A crucial element of this impact is the alteration of vegetation cover, which plays a
significant role in maintaining the ecological equilibrium of our planet.Land serves as the foundation for all human activities and provides the necessary materials for
these activities. As the most crucial natural resource, its utilization by humans results in different
'Land uses,' which are determined by both human activities and the physical characteristics of the
land.
The utilization of land is impacted by human needs and environmental factors. In countries
like India, rapid population growth and the emphasis on extensive resource exploitation can lead
to significant land degradation, adversely affecting the region's land cover.
Therefore, human intervention has significantly influenced land use patterns over many
centuries, evolving its structure over time and space. In the present era, these changes have
accelerated due to factors such as agriculture and urbanization. Information regarding land use and
cover is essential for various planning and management tasks related to the Earth's surface,
providing crucial environmental data for scientific, resource management, policy purposes, and
diverse human activities.
Accurate understanding of land use and cover is imperative for the development planning
of any area. Consequently, a wide range of professionals, including earth system scientists, land
and water managers, and urban planners, are interested in obtaining data on land use and cover
changes, conversion trends, and other related patterns. The spatial dimensions of land use and
cover support policymakers and scientists in making well-informed decisions, as alterations in
these patterns indicate shifts in economic and social conditions. Monitoring such changes with the
help of Advanced technologies like Remote Sensing and Geographic Information Systems is
crucial for coordinated efforts across different administrative levels. Advanced technologies like
Remote Sensing and Geographic Information Systems
9
Changes in vegetation cover refer to variations in the distribution, composition, and overall
structure of plant communities across different temporal and spatial scales. These changes can
occur natural.
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