What is the difference between a semi-permeable and selectively perm.pdf
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What is the difference between a semi-permeable and selectively permeable membrane? A.) How does this apply to osmosis, diffusion, faciliatated diffusion, and active transport Solution Semi-permeable membrane acts as correct partition between two osmotically active solutions or between a solution and its solvent. This membrane allows only solvent to pass through. In general, the movement is based on the concentration differences between the two solutions, i.e, the concentration gradient between the two solutions decides the movement under normal conditions (when no force is applied on either side).this type of membrane is used in dialysis maintenance. Example: egg membrane, paper, potato experiment. Selectively permeable membrane, as the name indicates chooses the particle to pass through it. Both solutes and solvents can pass through it. Many cell membranes such as cell membrane (plasmalemma) and tonoplast are selectively permeable. Selectively permeable membrane wont allow other than the selected molecules..
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12). Define the following terms semi-permeable membrane, solvent, s.pdf
12). Define the following terms: semi-permeable membrane, solvent, solute, diffusion, osmosis,
osmotically active substances, hypertonic, isotonic, hypotonic, Brownian movement,
plasmolysis, turgor pressure, hypothesis, concentration gradient.
I have a biology lab exam coming up this is one of the review topic questions. I would appreciate
the help.
Solution
semi-permeable membrane:A semipermeable membrane is a barrier that allows only certain
molecules or ions to pass through, while blocking others. Molecules pass through the membrane
via osmosis, which is the passage of any substance through diffusion, or the tendency of
molecules to move from an area where they exist in higher concentrations to an area of lower
concentration .it is also called selective membrane.
.eg:thin film membrane that lines the inside of an egg.
solvent:A substance that can dissolve another substance, or in which another substance is
dissolved, forming a solution.
eg:water.
solute: the minor component dissolved in a solution, the dissolved substance is called a solute
.eg:sugar is the solute .
diffusion:diffusion is a type of transport that moves molecules or compounds in or out of a cell.
There are three main types of diffusion, which include simple diffusion, channel diffusion and
facilitated diffusion.
eg:A teabag placed in a cup of hot water will diffuse into the water.
osmosis:.Osmosis is a special example of diffusion. It is the diffusion of a substance through a
semipermeable membrane from a more dilute solution to a more concentrated solution. This
process is also passive since no external energy is needed.
eg:Absorption of water by plant roots.
osmotically active substances:In order to have osmosis first of all you need to have a semi-
permeable membrane separating two solutions. In order to have net water movement from one
solution to the other you need to have different concentrations of solutes that cannot pass through
the membrane. These solutes are osmotically active: since they cannot pass through the
membrane water has to move in order to equilibrate the osmotic pressures. If they could pass
through the membrane then they would just diffuse from one solution to the other until their
concentration equilibrates and thus they would not contribute to the generation of osmotic
pressure.(or)
osmotic active substances are substances that do not pass through cell membrane.
e.g: proteins are large they dont pass through membranes directly so they suck water from
interstitial fluid to the vessels.
hypertonic:Ahypertonic solution is a particular type of solution that has a greater concentration
of solutes on the outside of a cell when compared with the inside of a cell.
eg: glucose dissolved into it is any plain glucose solution with a concentration higher than 5%.
isotonic:An isotonic solution refers to two solutions having the same osmotic pressure across a
semipermeable membrane. This state allows for the free movement of water across the
membrane without cha.
Diffusion - IntroductionThis unit we are learning about the .docx
Diffusion - Introduction
This unit we are learning about the structure and function of cells. The plasma membrane, for example, is an important structure of all cells and it is responsible for regulating the passage of materials into and out of the cell. Plasma membranes are differentially (selectively) permeable, meaning some substances are allowed to enter and exit the cell, while the movement of other materials is either carefully regulated or blocked. Two ways in which materials can move
freely
across the cell membrane are
diffusion
and
osmosis
.
Diffusion
is the movement of
solutes
(material dissolved in liquid) from an area of high concentration to an area of low concentration. If these areas are separated by a membrane, that membrane may or may not be permeable to the solute. The membrane is always permeable to water though and the movement of water across a membrane is a special form of diffusion called
osmosis
.
We will be using
dialysis tubing
to simulate a semipermeable membrane. This tubing allows small molecules (e.g., water, ions, glucose) to pass while preventing large molecules (e.g., macromolecules like proteins, starch, glycogen) from moving across. Be sure you have read over the suggested material before starting this exercise and that you have reviewed the following video:
Diffusion and Osmosis (Links to an external site.)
When you are ready to begin, open the
Unit 3 Experiment Answer Sheet
and answer the questions associated with the first exercise.
Osmosis - Introduction
In our second exercise this unit, we will to take a closer look at
osmosis
; the movement of water across a membrane. The direction water moves depends on the relative concentration of
solute
molecules on either side of the membrane (in this case, these solutes are not able to cross the membrane). Furthermore, the presence or absence of cell walls (e.g., in plant cells) influences how cells respond to osmotic fluctuations in their environment. This exercise will examine the forces that determine whether water moves into or out of a cell.
We will be using the following website in this exercise. Be sure you are able to access and use this website before starting.
The Biology Place. No Date. Osmosis: Movement of Water across Membranes (Links to an external site.)
Open the
Unit 3 Experiment Answer Sheet
and complete the questions for this exercise.
.
Describe how a selectively permeable membrane is involved in osmosis.pdf
Describe how a selectively permeable membrane is involved in osmosis. Include the role that the
solute concentration plays in the direction of water movement. Now think about how this process
may differ between plant and animal cells. For instance, how might cell walls disrupt the role of
solute concentration and cause one to refute a hypothesis for the direction of water movement
based on water concentration alone?
Solution
Let me first briefly descibe you how does osmosis happen. Consider there are two compartments
contaning a particular solute in a solvent seperated by a semi permeable membrane. If there
exists a solute difference between the two compartments, then solvent moves from the region of
lower conceration (with respect to solute) to higher concentration (with respect to solute) until it
reaches equilibrium. That means semi permeable membrane is permeable to solvent. Now comes
the situation of in vivo (i.e., within the body). The cells, whether from animals or plants are
usually hypertonic in nature that means cells have higher ionic concentration compared to its
external environment (water is the solvent). Then how do these cells maintain such a higher ionic
concentration by refuting the process of osmosis/diffusion. First let us consider the plant cell.
Plant cell has two coverages, namely plasma membrane and cell wall. Cell wall in plant cell is
made up of cellulose and cellulose is a polysacharide provides the rigidity to the cells. Actually,
it is the plasma membrane which does not allow the movement of water molecules to cross based
on gradient of solutes. Let me talk about the cell wall at the end of this answer. What makes that
plasma membrane to refute the law of osmosis ? It is its structural organization. Plasma
membrane is made up of phospholipids, cholesterol and proteins mainly. Phospholipids are
oriented in bilayer form facing its hydrophilic (water loving) head at both the ends interacing
with cytoplasma and extracellular environment and its hydrophobic (water hating) tails are
oriented deep within the membrane interacing each other. Plasma membrane of either plant or
animal are highly impermeable to the solutes and water. Permeability of plasma membrane
highly depends on the nature of solutes. If solute is smaller in size and hydrophobic in nature it
diffuses through the membrane quiet easily but it is difficult for the hydrophilic and largge size
solutes. Charge of the solutes also plays the major role. It is not only based on the concentration
gradient but also based on charge gradient. Hence it is known as electrochemical gradient. It is
actually a beautiful mechanism of cells to produce energy required for the cell based on
electrochemical gradient (within mitochondria) And for water, it is difficult to pass through.
There is a term called \"Activation energy\". Energy need to be supplied in order to facilitate the
movement of solutes.Lower the activation energy, lesser the energy required and vica versa.
Comi.
Membrane filtration technology in food engg.
Its about membrane filtration technology used in food engg. It describes types of membrane, RO, UF, MF, troubleshooting occurred during membrane filtration etc.
Recommended
12). Define the following terms semi-permeable membrane, solvent, s.pdf
12). Define the following terms: semi-permeable membrane, solvent, solute, diffusion, osmosis,
osmotically active substances, hypertonic, isotonic, hypotonic, Brownian movement,
plasmolysis, turgor pressure, hypothesis, concentration gradient.
I have a biology lab exam coming up this is one of the review topic questions. I would appreciate
the help.
Solution
semi-permeable membrane:A semipermeable membrane is a barrier that allows only certain
molecules or ions to pass through, while blocking others. Molecules pass through the membrane
via osmosis, which is the passage of any substance through diffusion, or the tendency of
molecules to move from an area where they exist in higher concentrations to an area of lower
concentration .it is also called selective membrane.
.eg:thin film membrane that lines the inside of an egg.
solvent:A substance that can dissolve another substance, or in which another substance is
dissolved, forming a solution.
eg:water.
solute: the minor component dissolved in a solution, the dissolved substance is called a solute
.eg:sugar is the solute .
diffusion:diffusion is a type of transport that moves molecules or compounds in or out of a cell.
There are three main types of diffusion, which include simple diffusion, channel diffusion and
facilitated diffusion.
eg:A teabag placed in a cup of hot water will diffuse into the water.
osmosis:.Osmosis is a special example of diffusion. It is the diffusion of a substance through a
semipermeable membrane from a more dilute solution to a more concentrated solution. This
process is also passive since no external energy is needed.
eg:Absorption of water by plant roots.
osmotically active substances:In order to have osmosis first of all you need to have a semi-
permeable membrane separating two solutions. In order to have net water movement from one
solution to the other you need to have different concentrations of solutes that cannot pass through
the membrane. These solutes are osmotically active: since they cannot pass through the
membrane water has to move in order to equilibrate the osmotic pressures. If they could pass
through the membrane then they would just diffuse from one solution to the other until their
concentration equilibrates and thus they would not contribute to the generation of osmotic
pressure.(or)
osmotic active substances are substances that do not pass through cell membrane.
e.g: proteins are large they dont pass through membranes directly so they suck water from
interstitial fluid to the vessels.
hypertonic:Ahypertonic solution is a particular type of solution that has a greater concentration
of solutes on the outside of a cell when compared with the inside of a cell.
eg: glucose dissolved into it is any plain glucose solution with a concentration higher than 5%.
isotonic:An isotonic solution refers to two solutions having the same osmotic pressure across a
semipermeable membrane. This state allows for the free movement of water across the
membrane without cha.
Diffusion - IntroductionThis unit we are learning about the .docx
Diffusion - Introduction
This unit we are learning about the structure and function of cells. The plasma membrane, for example, is an important structure of all cells and it is responsible for regulating the passage of materials into and out of the cell. Plasma membranes are differentially (selectively) permeable, meaning some substances are allowed to enter and exit the cell, while the movement of other materials is either carefully regulated or blocked. Two ways in which materials can move
freely
across the cell membrane are
diffusion
and
osmosis
.
Diffusion
is the movement of
solutes
(material dissolved in liquid) from an area of high concentration to an area of low concentration. If these areas are separated by a membrane, that membrane may or may not be permeable to the solute. The membrane is always permeable to water though and the movement of water across a membrane is a special form of diffusion called
osmosis
.
We will be using
dialysis tubing
to simulate a semipermeable membrane. This tubing allows small molecules (e.g., water, ions, glucose) to pass while preventing large molecules (e.g., macromolecules like proteins, starch, glycogen) from moving across. Be sure you have read over the suggested material before starting this exercise and that you have reviewed the following video:
Diffusion and Osmosis (Links to an external site.)
When you are ready to begin, open the
Unit 3 Experiment Answer Sheet
and answer the questions associated with the first exercise.
Osmosis - Introduction
In our second exercise this unit, we will to take a closer look at
osmosis
; the movement of water across a membrane. The direction water moves depends on the relative concentration of
solute
molecules on either side of the membrane (in this case, these solutes are not able to cross the membrane). Furthermore, the presence or absence of cell walls (e.g., in plant cells) influences how cells respond to osmotic fluctuations in their environment. This exercise will examine the forces that determine whether water moves into or out of a cell.
We will be using the following website in this exercise. Be sure you are able to access and use this website before starting.
The Biology Place. No Date. Osmosis: Movement of Water across Membranes (Links to an external site.)
Open the
Unit 3 Experiment Answer Sheet
and complete the questions for this exercise.
.
Describe how a selectively permeable membrane is involved in osmosis.pdf
Describe how a selectively permeable membrane is involved in osmosis. Include the role that the
solute concentration plays in the direction of water movement. Now think about how this process
may differ between plant and animal cells. For instance, how might cell walls disrupt the role of
solute concentration and cause one to refute a hypothesis for the direction of water movement
based on water concentration alone?
Solution
Let me first briefly descibe you how does osmosis happen. Consider there are two compartments
contaning a particular solute in a solvent seperated by a semi permeable membrane. If there
exists a solute difference between the two compartments, then solvent moves from the region of
lower conceration (with respect to solute) to higher concentration (with respect to solute) until it
reaches equilibrium. That means semi permeable membrane is permeable to solvent. Now comes
the situation of in vivo (i.e., within the body). The cells, whether from animals or plants are
usually hypertonic in nature that means cells have higher ionic concentration compared to its
external environment (water is the solvent). Then how do these cells maintain such a higher ionic
concentration by refuting the process of osmosis/diffusion. First let us consider the plant cell.
Plant cell has two coverages, namely plasma membrane and cell wall. Cell wall in plant cell is
made up of cellulose and cellulose is a polysacharide provides the rigidity to the cells. Actually,
it is the plasma membrane which does not allow the movement of water molecules to cross based
on gradient of solutes. Let me talk about the cell wall at the end of this answer. What makes that
plasma membrane to refute the law of osmosis ? It is its structural organization. Plasma
membrane is made up of phospholipids, cholesterol and proteins mainly. Phospholipids are
oriented in bilayer form facing its hydrophilic (water loving) head at both the ends interacing
with cytoplasma and extracellular environment and its hydrophobic (water hating) tails are
oriented deep within the membrane interacing each other. Plasma membrane of either plant or
animal are highly impermeable to the solutes and water. Permeability of plasma membrane
highly depends on the nature of solutes. If solute is smaller in size and hydrophobic in nature it
diffuses through the membrane quiet easily but it is difficult for the hydrophilic and largge size
solutes. Charge of the solutes also plays the major role. It is not only based on the concentration
gradient but also based on charge gradient. Hence it is known as electrochemical gradient. It is
actually a beautiful mechanism of cells to produce energy required for the cell based on
electrochemical gradient (within mitochondria) And for water, it is difficult to pass through.
There is a term called \"Activation energy\". Energy need to be supplied in order to facilitate the
movement of solutes.Lower the activation energy, lesser the energy required and vica versa.
Comi.
Membrane filtration technology in food engg.
Its about membrane filtration technology used in food engg. It describes types of membrane, RO, UF, MF, troubleshooting occurred during membrane filtration etc.
The properties of biological fluids and features of transport through cell me...
Membrane transport, diffusion, osmosis, passive transport through cell membrane. Lectures from Biophysics.
Gastrointestinal Absorption of Drugs
B.PHARM, SEMESTER VI, PCI REGULATION
U-1(B) ABSORPTION- PART - 1
Can you please explain those risk management from Kaiser Permanente.pdf
Can you please explain those risk management from Kaiser Permanente
•Implementation and development of HealthCare risk management programs that help risk
managers to always stay updated about relevant information in their organization.
•There are various risk management plans developed specially for the patients as patient should
be the first priority of any Health organization.
PLEASE PROVIDE A LINK for me to better understand
Solution
1) Each organization faces unique challenges there is no such model that fits all risk management
solution. The role of risk manager is to identify and evaluate risk as a mean to injury to patient,
staff members and visitors within the organization. The risk manager must stay up to date on
relevant information in their organization. The manager should conduct organization specific risk
analyses to determine potential risk. Risk manager should compare the likelihood of different
adverse events along with their impact and rank potential risk in terms of severity.
2) The risk management plans are specific to different healthcare facilities. While avoiding
potential financial consequences patients needs are generally the priority. The plans for risk
management must cover patient specific risk and be well documented. The patient risk can be
reduced by adequately training physician and staff. The other plans involve.
i) Communicating with patients.
ii) Preventing falls and immobility.
iii) Sufficient record retention.
iv) Tracking missed appointment.
Comprehensive risk management plans in patient care not only facilitate patient safety but also
reduce readmission as patients are the first priority of any organization..
A survey of 2630 musicians showed that 372 of them are left-handed. .pdf
A survey of 2630 musicians showed that 372 of them are left-handed. Find a point estimate for p,
the population proportion of musicians that are left-handed.
Question 5 options:a)0.124b)0.165c)0.859d)0.141
Solution
As
p^ = x/n
and
x = 372, n = 2630, then
p^ = 372/2630 = 0.141444867 = 0.141 [ANSWER, D].
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Can you please explain those risk management from Kaiser Permanente.pdf
Can you please explain those risk management from Kaiser Permanente
•Implementation and development of HealthCare risk management programs that help risk
managers to always stay updated about relevant information in their organization.
•There are various risk management plans developed specially for the patients as patient should
be the first priority of any Health organization.
PLEASE PROVIDE A LINK for me to better understand
Solution
1) Each organization faces unique challenges there is no such model that fits all risk management
solution. The role of risk manager is to identify and evaluate risk as a mean to injury to patient,
staff members and visitors within the organization. The risk manager must stay up to date on
relevant information in their organization. The manager should conduct organization specific risk
analyses to determine potential risk. Risk manager should compare the likelihood of different
adverse events along with their impact and rank potential risk in terms of severity.
2) The risk management plans are specific to different healthcare facilities. While avoiding
potential financial consequences patients needs are generally the priority. The plans for risk
management must cover patient specific risk and be well documented. The patient risk can be
reduced by adequately training physician and staff. The other plans involve.
i) Communicating with patients.
ii) Preventing falls and immobility.
iii) Sufficient record retention.
iv) Tracking missed appointment.
Comprehensive risk management plans in patient care not only facilitate patient safety but also
reduce readmission as patients are the first priority of any organization..
A survey of 2630 musicians showed that 372 of them are left-handed. .pdf
A survey of 2630 musicians showed that 372 of them are left-handed. Find a point estimate for p,
the population proportion of musicians that are left-handed.
Question 5 options:a)0.124b)0.165c)0.859d)0.141
Solution
As
p^ = x/n
and
x = 372, n = 2630, then
p^ = 372/2630 = 0.141444867 = 0.141 [ANSWER, D].
What is other disorder of arteries beside atherosclerosis What.pdf
What is other disorder of arteries beside atherosclerosis?
What are the sign, symptoms? What cause it? What are treatment?
What is other disorder of arteries beside atherosclerosis?
What are the sign, symptoms? What cause it? What are treatment?
What are the sign, symptoms? What cause it? What are treatment?
Solution
Answer: What is other disorder of arteries beside atherosclerosis?
What are the sign, symptoms? What cause it? What are treatment?
Formation of emobolus or clogging of arteries is leading to ischaemic artery disease result in
angina pectoris and this clogging of arteries is due to \"high density lipoproteins and VLDLs &
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care management. Nitroglycerine is potent vasodilator given sublingual route for angina patients
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Why is a egg cell is much larger than a sperm cell Explain in 1-2 p.pdf
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Make sure all text fields have error checking and exception handling for invalid input. For
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successful!\" The frame should open a new JFrame with the title, \"Flight Information,\" and a
size of 475 by 500 pixels. This frame has the flight information displayed in a JTextArea. [6 pts]
Q4: On the Flight Information frame, you will need to display information for each Flight in the
Itinerary [7 points]:
Airline: Display the airline
Model: The model of the airplane should be generated from the Plane object inside of the Flight
class.
Departure Airport: Display the source airport
Departure City: Display the departure city based on the departure airport (use the
getAirportCity() method you implemented in the Unit 3 assignment to get the airport city)
Destination Airport: Display the destination airport
Destination City: Display the destination city based on the destination airport (use the
g.
Suppose that a heap stores 210 elements. What is its height (show w.pdf
Suppose that a heap stores 210 elements. What is its height? (show work with diagrams)
Solution
A binary heap is a complete binary tree which satisfies the heap ordering property.
The maximum number of nodes at level l of the heap is 2l.
Therefore a heap of height h stores at most 20+ 21+:+ 2h= 2h +1 – 1 node.
If h= 6, then the heap stores at most 27 – 1 =127 elements, which is not enough .so the heap must
be of height 7,since for height 7 a heap can store 28 – 1 =255. The last level of the heap is not
full..
Oxfam used its existing opt-in e-mail list only for this campaign; i.pdf
Oxfam used its existing opt-in e-mail list only for this campaign; it did not purchase (or borrow
from other charitable organizations) any additional e-mail addresses. Evaluate this decision.
Question: Explain the advantages and disadvantages of: Using existing e-mail addresses
Acquiring other e-mail addresses for a campaign of this nature.
Solution
Advantages:
Disadvantages:.
Please distinguish between the .h and .cpp file, create a fully work.pdf
Please distinguish between the .h and .cpp file, create a fully working c++ program using the
diagram provided.
Section 1: Homework Objectives
1. Given a class UML, learn to write a C++ class declaration.
2. Learn how to define/call constructor, accessor, mutator or toString( )
Section 2: Background
In this homework, according to the given UML class diagram, you’re required to design a
BankAccount class. You are also required to write a driver’s program to test it.
Section 3: Program description
3.1 Introduction
According to the following UML diagram, design a BankAccount class.
BankAccount
-id: string = \"?\"
-balance: double = 0.0
-address: string = \"?\"
+BankAccount()
+BankAccount(string, double, string)
+getID(): string
+getBalance(): double
+getAddress(): string
+setID(string): void
+deposit(double): bool
+withdraw(double): bool
+updateAddress(string):void
+toString(): string
+addInterest(): void
+equals(BankAccount): bool
Member variables and member functions\' description
Member
Variable
Data Type
Description
id
string
This represents a bank account\'s unique ID, such as \"123-456-
789\"
balance
double
This is the account balance.
address
string
This represents a bank account customer\'s mailing address, such as \"12345 Via Linda Rd.
Phoenix, AZ 85048\"
Member Function
Function Description
BankAccount()
This is the default constructor and it should initialize all member varible by the initial value
defined inside the UML. For example, id should be initialized to \"?\" etc.
BankAccount(string newID, double newBal, string newAddress)
This is the overloadded constructor. It takes three input parameters and initialize the three
member variables accordingly with the three input parameters.
string getID()
This is the accessor for member variable id
double getBalance()
This is the accessor for member variable balance
string getAddress()
This is the accessor for member variable address
void setID(string newID)
This is the mutator for member variable id. It takes a new id as input and change the member
variable id accordingly
bool deposit(double amount)
This is a mutator for member variable balance. It takes an amount as input parameter, if the
amount of deposit is negative, the balance will not be changed and the function should return
false; otherwise, the deposited amount (parameter value) will be added to the balance and the
function returns true.
bool withdraw(double amount)
This is a mutator for member variable balance. It takes an amount as input parameter, if the
balance is less than the withdraw amount (parameter value) or the withdraw amount is less than
zero, the function should return false, otherwise subtract the balance by withdraw amount and
return true.
void updateAddress(string newAddress)
This is a mutator for member variable address. In case the bank account\'s customer want to
change his/her address, we will use this function.
string toString()
The toString function will display an bank account info. in the following format.
JUST DO QUESTION 4 1. When you are preparing a budget where could yo.pdf
JUST DO QUESTION 4 1. When you are preparing a budget where could you gather
information and data from? 2. How could you estimate parameters for your budget? 3. What are
the four stages involved in developing a budget? 4. List and describe the 4 most common
budgeting approaches. 5. You have discussed with the human resource manager the new budget.
Why is i now important that you incorporate their suggestions and make the modifications to the
budget promptly?
Solution
Four most common budgeting approaches are:.
In the paramyxoviruses, cleavage of the F0 protein into two subunits .pdf
In the paramyxoviruses, cleavage of the F0 protein into two subunits F1 and F2 is important for
which of the following? glycosylation of the protein creation of the transmembrane domain
formation of the envelope exposing the fusion peptide
Solution
Answer:
D. exposing the fusion peptide
Explanation:
Paramyxoviruses contain two membrane glycoproteins, the fusion protein (F) and the
hemagglutinin-neuraminidase protein (HN). The F protein is synthesized as an uncleaved,
inactive form (F0) and is cleaved into F1 and F2 subunits. Cleavage of the F protein by a trypsin-
like protease is required for virus infectivity. The exposure of a new hydrophobic domain at the
N terminus of the F1 subunit appears to be essential for the membrane fusion activity of the F
protein. The other glycoprotein, HN, binds to sialic acid-containing receptors and possesses
neuraminidase activity..
Information about dengue fever is provided on the following pages. A.pdf
Information about dengue fever is provided on the following pages. After studying this
information, outline the chain of infection by identifying the reservoir(s), portal(s) of exit,
mode(s) of transmission, portal(s) of entry, and factors in host susceptibility.
Reservoirs:
Portals of exit:
Modes of transmission:
Portals of entry:
Factors in host susceptibility:
Solution
Reservoirs : Wild monkeys
Portals of exit : Mosquitoes
Modes of transmission : Female Aedes aegypti Mosquito bite
Portals of entry : skin and blood
Factors in host susceptibility : all humans are equally susceptible to dengue. recent research
suggests that Oligoadenylate synthetases play an important role in the immune response against
dengue virus. People living in dengue endemic urban areas are very susceptible.While a person
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serotype, there is no cross-protection against the three other serotypes..
A toothcomb, rhinarium or moist nose, and vertical clinging and leapi.pdf
A toothcomb, rhinarium or moist nose, and vertical clinging and leaping locomotion, is
characteristic of apes savannah baboons. prosimians such as lorises and lemurs. New World
monkeys. The first primates probably evolved from primitive that lived before the Cenozoic era.
Birds insectivories grassland herbivories hominoids marine mammals Continental drift refers
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movement of the continents over time. the movement of species from one continent to another
in pursuit of gene flow over large continental regions, the result of population movements. a
dance step performed by Fred Astaire and Ginger Rogers during the Mooene.
Solution
Ans 16. \'c\' is the correct answer.
Explanation: The given characteristics of are strepsirhines; and the best examples of strepsirhines
are lemurs and loris.
Ans 17. \'d\' is the correct answer.
Explanation: Hominoids were the great apes which lived before Cenozoic era. First primates
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Ans 18. a
Continental drift refers to movement of continents on Earth. Option \'a\' gives the statement of
continental drift theory..
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