This document provides information about and comparisons between asexual and sexual reproduction. It defines the key characteristics of each type of reproduction, including that asexual reproduction involves one parent and produces identical offspring while sexual reproduction involves two parents and produces offspring with genetic variation. Examples of organisms that reproduce through each means are given. The advantages and disadvantages of both asexual and sexual reproduction are also outlined.
ove doesn’t equal sex.
It’s important to remember that asexuality is an umbrella term, and exists on a spectrum. Asexual people – also known as “Ace” or “Aces” – may have little interest in having sex, even though they desire emotionally intimate relationships. Within the ace community there are many ways for people to identify.
Asexuality Chart
Here are just a few common terms to explore:
Demisexual: People who only experience sexual attraction once they form a strong emotional connection with another person.
Grey-A: People who identify somewhere between sexual and asexual.
Queerplatonic: People who experience a type of non-romantic relationship where there is an intense emotional connection that goes beyond a traditional friendship.
Aces commonly use hetero-, homo-, bi-, and pan- in front of the word romantic to describe who they experience romantic attraction to. For example, a person who is hetero-romantic might be attracted to people of a different sex or gender, but not in a sexual way.
Asexuality Blurry Do and Don't Say
FAQ
My friends talk about sex all the time, but I don’t feel any desire to be with someone in that way. Is it normal to not feel any sexual attraction towards other people?
I am romantically attracted to boys and girls, but I don’t want to be with them physically. Can I be bisexual and asexual?
I kissed my boyfriend for the first time and it was gross! Does this mean I am asexual?
How do I tell my partner/the person I like that I am asexual?
People are telling me that something is wrong with me now that I’ve come out as asexual. Even worse, some are saying that asexuality doesn’t exist. How can I help them understand me?
Question 1: My friends talk about sex all the time, but I d
Genetics course notes for 6-7-8-9 grade life science, Compare and contrast asexual and sexual reproduction, also mitosis vs meiosis, Organization from the Human body to cell nucleus, DNA, gene, Alleles and protein creation. Homozygous dominant/recessive and Heterozygous w/example. Mutations Lock and key analogy. Punnet squares and pedigree problems
ove doesn’t equal sex.
It’s important to remember that asexuality is an umbrella term, and exists on a spectrum. Asexual people – also known as “Ace” or “Aces” – may have little interest in having sex, even though they desire emotionally intimate relationships. Within the ace community there are many ways for people to identify.
Asexuality Chart
Here are just a few common terms to explore:
Demisexual: People who only experience sexual attraction once they form a strong emotional connection with another person.
Grey-A: People who identify somewhere between sexual and asexual.
Queerplatonic: People who experience a type of non-romantic relationship where there is an intense emotional connection that goes beyond a traditional friendship.
Aces commonly use hetero-, homo-, bi-, and pan- in front of the word romantic to describe who they experience romantic attraction to. For example, a person who is hetero-romantic might be attracted to people of a different sex or gender, but not in a sexual way.
Asexuality Blurry Do and Don't Say
FAQ
My friends talk about sex all the time, but I don’t feel any desire to be with someone in that way. Is it normal to not feel any sexual attraction towards other people?
I am romantically attracted to boys and girls, but I don’t want to be with them physically. Can I be bisexual and asexual?
I kissed my boyfriend for the first time and it was gross! Does this mean I am asexual?
How do I tell my partner/the person I like that I am asexual?
People are telling me that something is wrong with me now that I’ve come out as asexual. Even worse, some are saying that asexuality doesn’t exist. How can I help them understand me?
Question 1: My friends talk about sex all the time, but I d
Genetics course notes for 6-7-8-9 grade life science, Compare and contrast asexual and sexual reproduction, also mitosis vs meiosis, Organization from the Human body to cell nucleus, DNA, gene, Alleles and protein creation. Homozygous dominant/recessive and Heterozygous w/example. Mutations Lock and key analogy. Punnet squares and pedigree problems
This power point is prepared to made easy to understand the method of asexual reproduction for students.
This is a quick review which may save your time...
Enjoy... :)
While asexual reproduction only involves one organism, sexual reproduction requires both a male and a female. Some plants and unicellular organisms reproduce asexually. Most mammals and fish use sexual reproduction. Some organisms like corals and komodo dragons can reproduce either sexually or asexually. But in the long term (over several generations), lack of sexual reproduction compromises their ability to adapt to the environment because they do not benefit from the genetic variation introduced by sexual reproduction.
Earliest Galaxies in the JADES Origins Field: Luminosity Function and Cosmic ...Sérgio Sacani
We characterize the earliest galaxy population in the JADES Origins Field (JOF), the deepest
imaging field observed with JWST. We make use of the ancillary Hubble optical images (5 filters
spanning 0.4−0.9µm) and novel JWST images with 14 filters spanning 0.8−5µm, including 7 mediumband filters, and reaching total exposure times of up to 46 hours per filter. We combine all our data
at > 2.3µm to construct an ultradeep image, reaching as deep as ≈ 31.4 AB mag in the stack and
30.3-31.0 AB mag (5σ, r = 0.1” circular aperture) in individual filters. We measure photometric
redshifts and use robust selection criteria to identify a sample of eight galaxy candidates at redshifts
z = 11.5 − 15. These objects show compact half-light radii of R1/2 ∼ 50 − 200pc, stellar masses of
M⋆ ∼ 107−108M⊙, and star-formation rates of SFR ∼ 0.1−1 M⊙ yr−1
. Our search finds no candidates
at 15 < z < 20, placing upper limits at these redshifts. We develop a forward modeling approach to
infer the properties of the evolving luminosity function without binning in redshift or luminosity that
marginalizes over the photometric redshift uncertainty of our candidate galaxies and incorporates the
impact of non-detections. We find a z = 12 luminosity function in good agreement with prior results,
and that the luminosity function normalization and UV luminosity density decline by a factor of ∼ 2.5
from z = 12 to z = 14. We discuss the possible implications of our results in the context of theoretical
models for evolution of the dark matter halo mass function.
The increased availability of biomedical data, particularly in the public domain, offers the opportunity to better understand human health and to develop effective therapeutics for a wide range of unmet medical needs. However, data scientists remain stymied by the fact that data remain hard to find and to productively reuse because data and their metadata i) are wholly inaccessible, ii) are in non-standard or incompatible representations, iii) do not conform to community standards, and iv) have unclear or highly restricted terms and conditions that preclude legitimate reuse. These limitations require a rethink on data can be made machine and AI-ready - the key motivation behind the FAIR Guiding Principles. Concurrently, while recent efforts have explored the use of deep learning to fuse disparate data into predictive models for a wide range of biomedical applications, these models often fail even when the correct answer is already known, and fail to explain individual predictions in terms that data scientists can appreciate. These limitations suggest that new methods to produce practical artificial intelligence are still needed.
In this talk, I will discuss our work in (1) building an integrative knowledge infrastructure to prepare FAIR and "AI-ready" data and services along with (2) neurosymbolic AI methods to improve the quality of predictions and to generate plausible explanations. Attention is given to standards, platforms, and methods to wrangle knowledge into simple, but effective semantic and latent representations, and to make these available into standards-compliant and discoverable interfaces that can be used in model building, validation, and explanation. Our work, and those of others in the field, creates a baseline for building trustworthy and easy to deploy AI models in biomedicine.
Bio
Dr. Michel Dumontier is the Distinguished Professor of Data Science at Maastricht University, founder and executive director of the Institute of Data Science, and co-founder of the FAIR (Findable, Accessible, Interoperable and Reusable) data principles. His research explores socio-technological approaches for responsible discovery science, which includes collaborative multi-modal knowledge graphs, privacy-preserving distributed data mining, and AI methods for drug discovery and personalized medicine. His work is supported through the Dutch National Research Agenda, the Netherlands Organisation for Scientific Research, Horizon Europe, the European Open Science Cloud, the US National Institutes of Health, and a Marie-Curie Innovative Training Network. He is the editor-in-chief for the journal Data Science and is internationally recognized for his contributions in bioinformatics, biomedical informatics, and semantic technologies including ontologies and linked data.
More Related Content
Similar to Asexual vs Sexual Reproduction PowerPoint.pptx
This power point is prepared to made easy to understand the method of asexual reproduction for students.
This is a quick review which may save your time...
Enjoy... :)
While asexual reproduction only involves one organism, sexual reproduction requires both a male and a female. Some plants and unicellular organisms reproduce asexually. Most mammals and fish use sexual reproduction. Some organisms like corals and komodo dragons can reproduce either sexually or asexually. But in the long term (over several generations), lack of sexual reproduction compromises their ability to adapt to the environment because they do not benefit from the genetic variation introduced by sexual reproduction.
Earliest Galaxies in the JADES Origins Field: Luminosity Function and Cosmic ...Sérgio Sacani
We characterize the earliest galaxy population in the JADES Origins Field (JOF), the deepest
imaging field observed with JWST. We make use of the ancillary Hubble optical images (5 filters
spanning 0.4−0.9µm) and novel JWST images with 14 filters spanning 0.8−5µm, including 7 mediumband filters, and reaching total exposure times of up to 46 hours per filter. We combine all our data
at > 2.3µm to construct an ultradeep image, reaching as deep as ≈ 31.4 AB mag in the stack and
30.3-31.0 AB mag (5σ, r = 0.1” circular aperture) in individual filters. We measure photometric
redshifts and use robust selection criteria to identify a sample of eight galaxy candidates at redshifts
z = 11.5 − 15. These objects show compact half-light radii of R1/2 ∼ 50 − 200pc, stellar masses of
M⋆ ∼ 107−108M⊙, and star-formation rates of SFR ∼ 0.1−1 M⊙ yr−1
. Our search finds no candidates
at 15 < z < 20, placing upper limits at these redshifts. We develop a forward modeling approach to
infer the properties of the evolving luminosity function without binning in redshift or luminosity that
marginalizes over the photometric redshift uncertainty of our candidate galaxies and incorporates the
impact of non-detections. We find a z = 12 luminosity function in good agreement with prior results,
and that the luminosity function normalization and UV luminosity density decline by a factor of ∼ 2.5
from z = 12 to z = 14. We discuss the possible implications of our results in the context of theoretical
models for evolution of the dark matter halo mass function.
The increased availability of biomedical data, particularly in the public domain, offers the opportunity to better understand human health and to develop effective therapeutics for a wide range of unmet medical needs. However, data scientists remain stymied by the fact that data remain hard to find and to productively reuse because data and their metadata i) are wholly inaccessible, ii) are in non-standard or incompatible representations, iii) do not conform to community standards, and iv) have unclear or highly restricted terms and conditions that preclude legitimate reuse. These limitations require a rethink on data can be made machine and AI-ready - the key motivation behind the FAIR Guiding Principles. Concurrently, while recent efforts have explored the use of deep learning to fuse disparate data into predictive models for a wide range of biomedical applications, these models often fail even when the correct answer is already known, and fail to explain individual predictions in terms that data scientists can appreciate. These limitations suggest that new methods to produce practical artificial intelligence are still needed.
In this talk, I will discuss our work in (1) building an integrative knowledge infrastructure to prepare FAIR and "AI-ready" data and services along with (2) neurosymbolic AI methods to improve the quality of predictions and to generate plausible explanations. Attention is given to standards, platforms, and methods to wrangle knowledge into simple, but effective semantic and latent representations, and to make these available into standards-compliant and discoverable interfaces that can be used in model building, validation, and explanation. Our work, and those of others in the field, creates a baseline for building trustworthy and easy to deploy AI models in biomedicine.
Bio
Dr. Michel Dumontier is the Distinguished Professor of Data Science at Maastricht University, founder and executive director of the Institute of Data Science, and co-founder of the FAIR (Findable, Accessible, Interoperable and Reusable) data principles. His research explores socio-technological approaches for responsible discovery science, which includes collaborative multi-modal knowledge graphs, privacy-preserving distributed data mining, and AI methods for drug discovery and personalized medicine. His work is supported through the Dutch National Research Agenda, the Netherlands Organisation for Scientific Research, Horizon Europe, the European Open Science Cloud, the US National Institutes of Health, and a Marie-Curie Innovative Training Network. He is the editor-in-chief for the journal Data Science and is internationally recognized for his contributions in bioinformatics, biomedical informatics, and semantic technologies including ontologies and linked data.
Seminar of U.V. Spectroscopy by SAMIR PANDASAMIR PANDA
Spectroscopy is a branch of science dealing the study of interaction of electromagnetic radiation with matter.
Ultraviolet-visible spectroscopy refers to absorption spectroscopy or reflect spectroscopy in the UV-VIS spectral region.
Ultraviolet-visible spectroscopy is an analytical method that can measure the amount of light received by the analyte.
This pdf is about the Schizophrenia.
For more details visit on YouTube; @SELF-EXPLANATORY;
https://www.youtube.com/channel/UCAiarMZDNhe1A3Rnpr_WkzA/videos
Thanks...!
Introduction:
RNA interference (RNAi) or Post-Transcriptional Gene Silencing (PTGS) is an important biological process for modulating eukaryotic gene expression.
It is highly conserved process of posttranscriptional gene silencing by which double stranded RNA (dsRNA) causes sequence-specific degradation of mRNA sequences.
dsRNA-induced gene silencing (RNAi) is reported in a wide range of eukaryotes ranging from worms, insects, mammals and plants.
This process mediates resistance to both endogenous parasitic and exogenous pathogenic nucleic acids, and regulates the expression of protein-coding genes.
What are small ncRNAs?
micro RNA (miRNA)
short interfering RNA (siRNA)
Properties of small non-coding RNA:
Involved in silencing mRNA transcripts.
Called “small” because they are usually only about 21-24 nucleotides long.
Synthesized by first cutting up longer precursor sequences (like the 61nt one that Lee discovered).
Silence an mRNA by base pairing with some sequence on the mRNA.
Discovery of siRNA?
The first small RNA:
In 1993 Rosalind Lee (Victor Ambros lab) was studying a non- coding gene in C. elegans, lin-4, that was involved in silencing of another gene, lin-14, at the appropriate time in the
development of the worm C. elegans.
Two small transcripts of lin-4 (22nt and 61nt) were found to be complementary to a sequence in the 3' UTR of lin-14.
Because lin-4 encoded no protein, she deduced that it must be these transcripts that are causing the silencing by RNA-RNA interactions.
Types of RNAi ( non coding RNA)
MiRNA
Length (23-25 nt)
Trans acting
Binds with target MRNA in mismatch
Translation inhibition
Si RNA
Length 21 nt.
Cis acting
Bind with target Mrna in perfect complementary sequence
Piwi-RNA
Length ; 25 to 36 nt.
Expressed in Germ Cells
Regulates trnasposomes activity
MECHANISM OF RNAI:
First the double-stranded RNA teams up with a protein complex named Dicer, which cuts the long RNA into short pieces.
Then another protein complex called RISC (RNA-induced silencing complex) discards one of the two RNA strands.
The RISC-docked, single-stranded RNA then pairs with the homologous mRNA and destroys it.
THE RISC COMPLEX:
RISC is large(>500kD) RNA multi- protein Binding complex which triggers MRNA degradation in response to MRNA
Unwinding of double stranded Si RNA by ATP independent Helicase
Active component of RISC is Ago proteins( ENDONUCLEASE) which cleave target MRNA.
DICER: endonuclease (RNase Family III)
Argonaute: Central Component of the RNA-Induced Silencing Complex (RISC)
One strand of the dsRNA produced by Dicer is retained in the RISC complex in association with Argonaute
ARGONAUTE PROTEIN :
1.PAZ(PIWI/Argonaute/ Zwille)- Recognition of target MRNA
2.PIWI (p-element induced wimpy Testis)- breaks Phosphodiester bond of mRNA.)RNAse H activity.
MiRNA:
The Double-stranded RNAs are naturally produced in eukaryotic cells during development, and they have a key role in regulating gene expression .
(May 29th, 2024) Advancements in Intravital Microscopy- Insights for Preclini...Scintica Instrumentation
Intravital microscopy (IVM) is a powerful tool utilized to study cellular behavior over time and space in vivo. Much of our understanding of cell biology has been accomplished using various in vitro and ex vivo methods; however, these studies do not necessarily reflect the natural dynamics of biological processes. Unlike traditional cell culture or fixed tissue imaging, IVM allows for the ultra-fast high-resolution imaging of cellular processes over time and space and were studied in its natural environment. Real-time visualization of biological processes in the context of an intact organism helps maintain physiological relevance and provide insights into the progression of disease, response to treatments or developmental processes.
In this webinar we give an overview of advanced applications of the IVM system in preclinical research. IVIM technology is a provider of all-in-one intravital microscopy systems and solutions optimized for in vivo imaging of live animal models at sub-micron resolution. The system’s unique features and user-friendly software enables researchers to probe fast dynamic biological processes such as immune cell tracking, cell-cell interaction as well as vascularization and tumor metastasis with exceptional detail. This webinar will also give an overview of IVM being utilized in drug development, offering a view into the intricate interaction between drugs/nanoparticles and tissues in vivo and allows for the evaluation of therapeutic intervention in a variety of tissues and organs. This interdisciplinary collaboration continues to drive the advancements of novel therapeutic strategies.
Cancer cell metabolism: special Reference to Lactate PathwayAADYARAJPANDEY1
Normal Cell Metabolism:
Cellular respiration describes the series of steps that cells use to break down sugar and other chemicals to get the energy we need to function.
Energy is stored in the bonds of glucose and when glucose is broken down, much of that energy is released.
Cell utilize energy in the form of ATP.
The first step of respiration is called glycolysis. In a series of steps, glycolysis breaks glucose into two smaller molecules - a chemical called pyruvate. A small amount of ATP is formed during this process.
Most healthy cells continue the breakdown in a second process, called the Kreb's cycle. The Kreb's cycle allows cells to “burn” the pyruvates made in glycolysis to get more ATP.
The last step in the breakdown of glucose is called oxidative phosphorylation (Ox-Phos).
It takes place in specialized cell structures called mitochondria. This process produces a large amount of ATP. Importantly, cells need oxygen to complete oxidative phosphorylation.
If a cell completes only glycolysis, only 2 molecules of ATP are made per glucose. However, if the cell completes the entire respiration process (glycolysis - Kreb's - oxidative phosphorylation), about 36 molecules of ATP are created, giving it much more energy to use.
IN CANCER CELL:
Unlike healthy cells that "burn" the entire molecule of sugar to capture a large amount of energy as ATP, cancer cells are wasteful.
Cancer cells only partially break down sugar molecules. They overuse the first step of respiration, glycolysis. They frequently do not complete the second step, oxidative phosphorylation.
This results in only 2 molecules of ATP per each glucose molecule instead of the 36 or so ATPs healthy cells gain. As a result, cancer cells need to use a lot more sugar molecules to get enough energy to survive.
Unlike healthy cells that "burn" the entire molecule of sugar to capture a large amount of energy as ATP, cancer cells are wasteful.
Cancer cells only partially break down sugar molecules. They overuse the first step of respiration, glycolysis. They frequently do not complete the second step, oxidative phosphorylation.
This results in only 2 molecules of ATP per each glucose molecule instead of the 36 or so ATPs healthy cells gain. As a result, cancer cells need to use a lot more sugar molecules to get enough energy to survive.
introduction to WARBERG PHENOMENA:
WARBURG EFFECT Usually, cancer cells are highly glycolytic (glucose addiction) and take up more glucose than do normal cells from outside.
Otto Heinrich Warburg (; 8 October 1883 – 1 August 1970) In 1931 was awarded the Nobel Prize in Physiology for his "discovery of the nature and mode of action of the respiratory enzyme.
WARNBURG EFFECT : cancer cells under aerobic (well-oxygenated) conditions to metabolize glucose to lactate (aerobic glycolysis) is known as the Warburg effect. Warburg made the observation that tumor slices consume glucose and secrete lactate at a higher rate than normal tissues.
A brief information about the SCOP protein database used in bioinformatics.
The Structural Classification of Proteins (SCOP) database is a comprehensive and authoritative resource for the structural and evolutionary relationships of proteins. It provides a detailed and curated classification of protein structures, grouping them into families, superfamilies, and folds based on their structural and sequence similarities.
Multi-source connectivity as the driver of solar wind variability in the heli...Sérgio Sacani
The ambient solar wind that flls the heliosphere originates from multiple
sources in the solar corona and is highly structured. It is often described
as high-speed, relatively homogeneous, plasma streams from coronal
holes and slow-speed, highly variable, streams whose source regions are
under debate. A key goal of ESA/NASA’s Solar Orbiter mission is to identify
solar wind sources and understand what drives the complexity seen in the
heliosphere. By combining magnetic feld modelling and spectroscopic
techniques with high-resolution observations and measurements, we show
that the solar wind variability detected in situ by Solar Orbiter in March
2022 is driven by spatio-temporal changes in the magnetic connectivity to
multiple sources in the solar atmosphere. The magnetic feld footpoints
connected to the spacecraft moved from the boundaries of a coronal hole
to one active region (12961) and then across to another region (12957). This
is refected in the in situ measurements, which show the transition from fast
to highly Alfvénic then to slow solar wind that is disrupted by the arrival of
a coronal mass ejection. Our results describe solar wind variability at 0.5 au
but are applicable to near-Earth observatories.
Nutraceutical market, scope and growth: Herbal drug technologyLokesh Patil
As consumer awareness of health and wellness rises, the nutraceutical market—which includes goods like functional meals, drinks, and dietary supplements that provide health advantages beyond basic nutrition—is growing significantly. As healthcare expenses rise, the population ages, and people want natural and preventative health solutions more and more, this industry is increasing quickly. Further driving market expansion are product formulation innovations and the use of cutting-edge technology for customized nutrition. With its worldwide reach, the nutraceutical industry is expected to keep growing and provide significant chances for research and investment in a number of categories, including vitamins, minerals, probiotics, and herbal supplements.
2. Match it Up- From your prior knowledge, match up the two types
of reproduction with their characteristics and place the items a
the Venn Diagram in your interactive notebook
Reproduction Type
Sexual reproduction
Asexual reproduction
Characteristics
Two parents
Identical offspring
One parent
Not identical offspring
Passes on DNA to from
parent to offspring
Bacteria, protists, some
plants, yeast
Fish, Mammals,
Amphibians, Birds,
Reptiles, Insects
2
3. Make a Venn Diagram
3
Asexual Reproduction Sexual Reproduction
Both
Types of
reproduction
in living
organisms
Pass DNA
from parent
to offspring
4. Picture Play
Look at each picture and decide whether it
demonstrated asexual or sexual reproduction and
describe why you think so.
4
5. Asexual Reproduction
Requires only one parent
Offspring have 100% the same chromosomes as the
parent.
In other words, the offspring are exact “clones” of the
parent.
Most unicellular organisms
reproduce this way.
Mitosis
5
6. Binary Fission
Bacteria
Protists
6
Binary fission is a form of asexual
reproduction where every organelle
is copied and the organism divides
in two.
7. Budding
Hydra
7
Budding is a means of
asexual reproduction
whereby a new individual
develops from an
outgrowth of a parent,
splits off, and lives
independently.
8. Spore Formation
Found in fungi, algae, protozoa
Airborne cells that are released from the parent. They
are enclosed and developed when the environment is
appropriate
8
10. Fragmentation
10
Fragmentation is a means of asexual
reproduction whereby a single parent
breaks into parts that regenerate into
whole new individuals.
11. Plant cuttings/
vegetative propagation
11
Vegetative reproduction is a type of asexual
reproduction in plants that relies on multi-
cellular structures formed by the parent
plant. It has long been exploited in
horticulture and agriculture, with various
methods employed to multiply stocks of
plants.
12. Asexual reproduction- Mitosis
The process where
animal cells divide
This is a type of asexual
reproduction
Body cells (somatic cells)
go through the process
of mitosis
Results in an exact copy
of the parent cell
12
13. Asexual Reproduction
Examples of organisms that reproduce asexually
Hydra
Sea Star
Strawberry
Archaebacteria
Eubacteria
Euglena
Paramecium
Yeast
13
14. Mitosis Brain Pop
http://glencoe.mcgraw-
hill.com/sites/dl/free/0078768349/164155/00053413.
html
14
15. Sexual Reproduction
All the members of the Animal
Kingdom
Fish
Mammals
Amphibians
Birds
Reptiles
Insects
Crustaceans
15
16. Sexual Reproduction
Requires two parents that each share ½ of the genetic
information.
Offspring share the characteristics of each parent.
Meiosis
16
17. Advantages vs Disadvantages of
Asexual Reproduction
Advantages
Asexual reproduction
produces more offspring
Asexual reproduction takes
less time
Only one parent involved. No
searching for mates
Requires less energy
Disadvantages
Same DNA being passed
down NO GENETIC
VARIATION IN THE
OFFSPRING
If parent has genetic disease
offspring will have it too
17
18. Advantages vs Disadvantages of
Sexual Reproduction
Advantages Disadvantages
Variation in offspring
Organism is more protected
because of genetic variation
Requires two organisms.
Must find a mate
requires more cellular energy
More time required for
offspring development
18
19. Sexual Reproduction
Plant Kingdom
Flowers are the reproductive organs of plants.
Some flowers have both male and female reproductive
organs on the same flower.
19
Male flower Female flower
20. Sexual Reproduction
Examples of organisms that reproduce sexually
Chickens
Iguanas
Lobsters
Sharks
Humans
Butterflies
Sunflowers
Roses
20
21. Sexual Reproduction
Happens 2 ways
Internally (inside)
The egg is fertilized by sperm inside the female
Mammals, birds, reptiles, insects, spiders
Externally (outside)
The egg is fertilized by sperm outside the female
The female lays the eggs and then the male fertilizes
them.
Fish and some amphibians
Plants and fungi (pollen and spores)
21
22. Summarize
Write two paragraphs with 6 sentences each
describing asexual and sexual reproduction.
Paragraph 1: Asexual reproduction is…..
Paragraph 2: Sexual reproduction is…
22
