Sexual reproduction involves two parents and produces offspring that are genetically unique from each other and their parents. Asexual reproduction involves one parent and produces offspring that are genetically identical to the parent and each other. The document provides examples of both types of reproduction in animals and plants, including binary fission in bacteria, budding in yeast, and parthenogenesis in some lizards and sharks. It also compares the pros and cons of each method.
Natural Science. Sexual reproduction in plants - PresentationROCIO YUSTE
La reproducción sexual de las plantas, presentación para alumnos de segundo curso de la ESO. Sexual reproduction in plants presentation for students of the second year.
7th grade Life Science Powerpoint on the basics of plant reproduction. Flowers, pistil, stamen, pollination, fertilization, pollen dispersal, seed dispersal.
Natural Science. Sexual reproduction in plants - PresentationROCIO YUSTE
La reproducción sexual de las plantas, presentación para alumnos de segundo curso de la ESO. Sexual reproduction in plants presentation for students of the second year.
7th grade Life Science Powerpoint on the basics of plant reproduction. Flowers, pistil, stamen, pollination, fertilization, pollen dispersal, seed dispersal.
I made this slideshow for my honors 7th grade Life Science class. It's a work in progress. It's heavy on angiosperms, but needs more information about gymnosperms and seedless plants. 7th grade, anther, biology, cones, egg, fertilization, gymnosperm, life science, ovules, pistil, plant reproduction - angiosperms, pollen dispersal, pollen grain, pollen tube, pollination, science, stamen, stigma, style
I made this slideshow for my honors 7th grade Life Science class. It's a work in progress. It's heavy on angiosperms, but needs more information about gymnosperms and seedless plants. 7th grade, anther, biology, cones, egg, fertilization, gymnosperm, life science, ovules, pistil, plant reproduction - angiosperms, pollen dispersal, pollen grain, pollen tube, pollination, science, stamen, stigma, style
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
Operation “Blue Star” is the only event in the history of Independent India where the state went into war with its own people. Even after about 40 years it is not clear if it was culmination of states anger over people of the region, a political game of power or start of dictatorial chapter in the democratic setup.
The people of Punjab felt alienated from main stream due to denial of their just demands during a long democratic struggle since independence. As it happen all over the word, it led to militant struggle with great loss of lives of military, police and civilian personnel. Killing of Indira Gandhi and massacre of innocent Sikhs in Delhi and other India cities was also associated with this movement.
Model Attribute Check Company Auto PropertyCeline George
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Francesca Gottschalk - How can education support child empowerment.pptxEduSkills OECD
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June 3, 2024 Anti-Semitism Letter Sent to MIT President Kornbluth and MIT Cor...Levi Shapiro
Letter from the Congress of the United States regarding Anti-Semitism sent June 3rd to MIT President Sally Kornbluth, MIT Corp Chair, Mark Gorenberg
Dear Dr. Kornbluth and Mr. Gorenberg,
The US House of Representatives is deeply concerned by ongoing and pervasive acts of antisemitic
harassment and intimidation at the Massachusetts Institute of Technology (MIT). Failing to act decisively to ensure a safe learning environment for all students would be a grave dereliction of your responsibilities as President of MIT and Chair of the MIT Corporation.
This Congress will not stand idly by and allow an environment hostile to Jewish students to persist. The House believes that your institution is in violation of Title VI of the Civil Rights Act, and the inability or
unwillingness to rectify this violation through action requires accountability.
Postsecondary education is a unique opportunity for students to learn and have their ideas and beliefs challenged. However, universities receiving hundreds of millions of federal funds annually have denied
students that opportunity and have been hijacked to become venues for the promotion of terrorism, antisemitic harassment and intimidation, unlawful encampments, and in some cases, assaults and riots.
The House of Representatives will not countenance the use of federal funds to indoctrinate students into hateful, antisemitic, anti-American supporters of terrorism. Investigations into campus antisemitism by the Committee on Education and the Workforce and the Committee on Ways and Means have been expanded into a Congress-wide probe across all relevant jurisdictions to address this national crisis. The undersigned Committees will conduct oversight into the use of federal funds at MIT and its learning environment under authorities granted to each Committee.
• The Committee on Education and the Workforce has been investigating your institution since December 7, 2023. The Committee has broad jurisdiction over postsecondary education, including its compliance with Title VI of the Civil Rights Act, campus safety concerns over disruptions to the learning environment, and the awarding of federal student aid under the Higher Education Act.
• The Committee on Oversight and Accountability is investigating the sources of funding and other support flowing to groups espousing pro-Hamas propaganda and engaged in antisemitic harassment and intimidation of students. The Committee on Oversight and Accountability is the principal oversight committee of the US House of Representatives and has broad authority to investigate “any matter” at “any time” under House Rule X.
• The Committee on Ways and Means has been investigating several universities since November 15, 2023, when the Committee held a hearing entitled From Ivory Towers to Dark Corners: Investigating the Nexus Between Antisemitism, Tax-Exempt Universities, and Terror Financing. The Committee followed the hearing with letters to those institutions on January 10, 202
Biological screening of herbal drugs: Introduction and Need for
Phyto-Pharmacological Screening, New Strategies for evaluating
Natural Products, In vitro evaluation techniques for Antioxidants, Antimicrobial and Anticancer drugs. In vivo evaluation techniques
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The French Revolution, which began in 1789, was a period of radical social and political upheaval in France. It marked the decline of absolute monarchies, the rise of secular and democratic republics, and the eventual rise of Napoleon Bonaparte. This revolutionary period is crucial in understanding the transition from feudalism to modernity in Europe.
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Unit 8 - Information and Communication Technology (Paper I).pdfThiyagu K
This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
5. Sexual Reproduction
2. Offspring are genetically different from
either parent.
– The genes of the offspring are different from the
parents.
– Half of your chromosomes came from the egg and
half from the sperm.
– You are not exactly like either parent though you
received half of your genes from each parent.
– The offspring are different from each other with
the exception of identical twins.
6. Sexual Reproduction
3. Always involves sperm and egg.
WAIT! What about those plants?
– Pollen contains sperm.
– Ovules contain eggs.
– Let’s take a closer look….
Video Link
7. Reproductive Organs in Plants: Flowers
Female Part – Pistil
•Has a sticky top part
called the stigma. It
catches the pollen.
•The skinny style holds
up the stigma.
•The fat bottom is
called the ovary. The
ovary holds the ovules
or eggs. It becomes
the fruit. (Draw this)
8. Male Part – Stamen
•The top yellow part is
called the anther . It
makes and releases
pollen. Pollen contains
the sperm.
•The stalk is called the
filament and it holds
the anther up high.
Reproductive Organs in Plants: Flowers
and Cones
10. ALL Trees reproduce sexually.
Some using flowers and some cones.
• Most deciduous trees
(those with regular leaves
that fall off in the winter)
reproduce sexually using
flowers.
• Some attract insects with
their pretty petals and
nectar.
• Most trees do not
have pretty petals
because the wind
pollinates their flowers.
12. Evergreen Trees Sexually Reproduce
Using Cones
Male Cones
- fall off
after
releasing
their pollen
in the
spring.
Female
Cones - are
green when
they receive
the pollen.
It takes 2
years for the
seeds to
mature.
The cone
then opens
and releases
them.
13. From Meiosis to Zygote
Meiosis
Meiosis
Fertilization
24
chromosomes
24
chromosomes
48
chromosomes
Zygote
sperm
egg
14. Sexual Reproduction in Animals
1. External fertilization – most common in aquatic
animals- because there is water, the sperm can swim.
• Oysters and coral and sponges
• Fish (spawning)
• Amphibians (frogs)
2. Internal fertilization – copulation – male deposits
sperm inside the female.
• Insects
• Snails (Hermaphrodites)
• Worms (Hermaphrodites)
• Reptiles
• Mammals
• Birds
18. Example: Binary Fission
Fission – the
division of bacteria
into two daughter
cells.
Bacteria does not
have a nucleus so
we do not call this
mitosis.
Bacteria is
unicellular – one
celled.
20. Examples of asexual reproduction:
Budding
Budding – organisms
grow an new little copy
of themselves. It falls
off and lives on its own.
Examples:
•Yeast
•Potatoes
•Hydra
•Coral
•Sponges
•Sea Anenomes
24. Examples of asexual reproduction:
Fragmentation and Regeneration
Fragmentation - The piece that broke off creates a
new organism.
Regeneration - The organism regrows the missing
piece
26. Parthenogenesis
• When animals create their own offspring
without having their eggs fertilized.
• The offspring are genetic clones of the parent.
27. Examples of asexual reproduction:
Parthenogenesis
Oleandar Aphid –
females give birth
to live young that
are genetically
identical to
themselves. No
males exist.
New Mexico
Whiptail Lizard
lays eggs that
were created by
parthenogenesis.
They are clones
of the mother.
'Virgin Birth' By Shark Confirmed: Second Case Ever
ScienceDaily (Oct. 11, 2008) — Scientists have confirmed
the second-ever case of a “virgin birth” in a shark,
indicating once again that female sharks can reproduce
without mating and raising the possibility that many
female sharks have this incredible capacity.
28. Pros and Cons of Sexual and Asexual Reproduction
PRO CON
Sexual More disease resistant -
Have different DNA so if
disease wipes out some
individuals others may have
the genes to resist the
infection.
Slower - With many
animals and plants it
can only occur once a
year. Organism is in
the immature form
longer.
Asexual Quicker - With many
animals and plants it can
occur all year long and does
not depend on the
presence of a male. Thus it
can produce more offspring
quicker and sooner.
Less disease resistant.
Have the same DNA so
if one individual can
get it then all can.
