This document compares and contrasts sexual and asexual reproduction. It defines key terms like gametes, fertilization, zygote, and discusses various modes of both sexual reproduction like the fusion of egg and sperm cells, and asexual reproduction like fission, budding, regeneration, and vegetative propagation. The main advantages of sexual reproduction are genetic variation and selective breeding, while the disadvantages include time/energy costs and finding mates. Asexual reproduction enables rapid reproduction without mates but results in uniform offspring lacking genetic variation.
Levels of organization life.
Atome-molecules-cells-tissues-organ-system-organism to the ecospehere.
With interactives exercises for the classroom lesson.
www. biodeluna.wordpress.com/
This slideshow was created as a seventh-grade example of what a student might accomplish to give a presentation to the class or group of kids about sexual and asexual reproduction.
Levels of organization life.
Atome-molecules-cells-tissues-organ-system-organism to the ecospehere.
With interactives exercises for the classroom lesson.
www. biodeluna.wordpress.com/
This slideshow was created as a seventh-grade example of what a student might accomplish to give a presentation to the class or group of kids about sexual and asexual reproduction.
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.
We all have good and bad thoughts from time to time and situation to situation. We are bombarded daily with spiraling thoughts(both negative and positive) creating all-consuming feel , making us difficult to manage with associated suffering. Good thoughts are like our Mob Signal (Positive thought) amidst noise(negative thought) in the atmosphere. Negative thoughts like noise outweigh positive thoughts. These thoughts often create unwanted confusion, trouble, stress and frustration in our mind as well as chaos in our physical world. Negative thoughts are also known as “distorted thinking”.
Read| The latest issue of The Challenger is here! We are thrilled to announce that our school paper has qualified for the NATIONAL SCHOOLS PRESS CONFERENCE (NSPC) 2024. Thank you for your unwavering support and trust. Dive into the stories that made us stand out!
The Art Pastor's Guide to Sabbath | Steve ThomasonSteve Thomason
What is the purpose of the Sabbath Law in the Torah. It is interesting to compare how the context of the law shifts from Exodus to Deuteronomy. Who gets to rest, and why?
Palestine last event orientationfvgnh .pptxRaedMohamed3
An EFL lesson about the current events in Palestine. It is intended to be for intermediate students who wish to increase their listening skills through a short lesson in power point.
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
This is a presentation by Dada Robert in a Your Skill Boost masterclass organised by the Excellence Foundation for South Sudan (EFSS) on Saturday, the 25th and Sunday, the 26th of May 2024.
He discussed the concept of quality improvement, emphasizing its applicability to various aspects of life, including personal, project, and program improvements. He defined quality as doing the right thing at the right time in the right way to achieve the best possible results and discussed the concept of the "gap" between what we know and what we do, and how this gap represents the areas we need to improve. He explained the scientific approach to quality improvement, which involves systematic performance analysis, testing and learning, and implementing change ideas. He also highlighted the importance of client focus and a team approach to quality improvement.
The Roman Empire A Historical Colossus.pdfkaushalkr1407
The Roman Empire, a vast and enduring power, stands as one of history's most remarkable civilizations, leaving an indelible imprint on the world. It emerged from the Roman Republic, transitioning into an imperial powerhouse under the leadership of Augustus Caesar in 27 BCE. This transformation marked the beginning of an era defined by unprecedented territorial expansion, architectural marvels, and profound cultural influence.
The empire's roots lie in the city of Rome, founded, according to legend, by Romulus in 753 BCE. Over centuries, Rome evolved from a small settlement to a formidable republic, characterized by a complex political system with elected officials and checks on power. However, internal strife, class conflicts, and military ambitions paved the way for the end of the Republic. Julius Caesar’s dictatorship and subsequent assassination in 44 BCE created a power vacuum, leading to a civil war. Octavian, later Augustus, emerged victorious, heralding the Roman Empire’s birth.
Under Augustus, the empire experienced the Pax Romana, a 200-year period of relative peace and stability. Augustus reformed the military, established efficient administrative systems, and initiated grand construction projects. The empire's borders expanded, encompassing territories from Britain to Egypt and from Spain to the Euphrates. Roman legions, renowned for their discipline and engineering prowess, secured and maintained these vast territories, building roads, fortifications, and cities that facilitated control and integration.
The Roman Empire’s society was hierarchical, with a rigid class system. At the top were the patricians, wealthy elites who held significant political power. Below them were the plebeians, free citizens with limited political influence, and the vast numbers of slaves who formed the backbone of the economy. The family unit was central, governed by the paterfamilias, the male head who held absolute authority.
Culturally, the Romans were eclectic, absorbing and adapting elements from the civilizations they encountered, particularly the Greeks. Roman art, literature, and philosophy reflected this synthesis, creating a rich cultural tapestry. Latin, the Roman language, became the lingua franca of the Western world, influencing numerous modern languages.
Roman architecture and engineering achievements were monumental. They perfected the arch, vault, and dome, constructing enduring structures like the Colosseum, Pantheon, and aqueducts. These engineering marvels not only showcased Roman ingenuity but also served practical purposes, from public entertainment to water supply.
2. LEARNING OBJECTIVES:
1.Differentiate asexual and sexual modes of
reproduction.
2.Describe different modes of sexual and asexual
reproduction.
3.Learn the importance of reproduction.
3. 4.Compare the results of uniform or diverse offspring
from sexual or asexual reproduction
Uniform offspring
Diverse offspring
Sexual reproduction
Asexual reproduction
4. RELEVANT VOCABULARY:
1.Asexual Reproduction-Mode of reproduction that
does not involve the use of gametes or sex cells.
2.Sexual Reproduction-Mode of reproduction that
involves the use of gametes or sex cells.
3.Fission -Type of asexual reproducion involving the
division of body into two or more equal parts.
5. 4.Fragmentation-Type of asexual reproduction where the
body breaks into two or more equal parts, with each
fragment capable of becoming a complete individual; in
animals, fragmentation is usually followed by regeneration
where the missing parts are produced. For example, a lost
arm of the starfish may be generated by mitotic cell
divisions.
5.Budding-Type of asexual reproduction where a new
individual arises as an outgrowth (bud) from its parent,
develops ogans like those of the parent , and then detaches
itself.
6. 6.Sporulation-Type of asexual reproduction where a
new individual foms from an aggregation of cells
surrounded by a resistant capsule or spore, which
later on germintaes.
7.Isogamy-Fusion of similar gametes which are
usually motile.
8.Heterogamy -Fussion of dissimilar gametes. In
oogamy, a large immotile gamete, the egg is fertilized
by a small motile gamete, the sperm.
7. 9.Bisexual reproduction- Type of sexual reproduction
involving the union of gametes from two genetically
different parents.
10. Hermaphrodite- An individual with both male and
female reproductive tissues. In animals “self
fertilization is not common. In worms, a
hermaphrodite needs a male to donate sperms in
order to fertilize the oocytes in its body.
11. THE FOLLOWING PICTURES DEPICT REPRODUCTION
ACROSS DIFFERNT ORGANISMS. AS ANIMALS, WE ARE
ONLY FAMILIAR WITH ONE FORM OF REPRODUCTION,
PARTICULARLY THE FORM DEPICTED BY THE
LIZARD.HOWEVER, THERE ARE OTHER FORMS OF
REPRODUCTION THAT EXIST IN NATURE,
12. Sexual Reproduction
A type of reproduction in which the genetic materials from two
different cells combine, producing an offspring
The cells that combine are called sex cells
Female – egg
Male – sperm
Fertilization: an egg cell and a sperm cell join together
A new cell is formed and is called a zygote
13. Advantages: Sexual Reproduction
Diverse offspring: genetic variation among offspring
Half of the DNA comes from mom
Half of the DNA comes from dad
Due to genetic variation, individuals within a population
have slight differences
Plants – resist diseases
Traits can develop to resist harsh environments that
allows an organism survive
14. Advantages: Sexual Reproduction
Selective Breeding
Used to develop many types of
plants and animals that have
desirable traits
Agriculture/Farming: better plants,
larger animals
Desirable pets
15. Disadvantages: Sexual Reproduction
Time and Energy
Organisms have to grow and develop until they are old enough
to produce sex cells
Search and find a mate
Searching can expose individuals to predators, diseases, or
harsh environmental conditions
Fertilization cannot take place during pregnancy, which can last
as long as 2 years for some mammals.
17. Asexual Reproduction
One parent: organism produces offspring
without fertilization
Uniform offspring:
Because offspring inherit all of their
DNA from one parent, they are
genetically identical to each other and
to their parent
18. Fission: Asexual Reproduction
Fission: Cell division in prokaryotes that forms two
genetically identical cells
DNA is copied
The cell begins to grow longer, pulling the two copies
apart
The cell membrane pinches inward in the middle of the
cell
Cell splits to form two new uniform, identical offspring
Examples: bacteria, Ecoli, pond critters
19. Budding: Asexual Reproduction
Budding: a new organism grows by mitosis and cell
division on the body of its parent
The bud, or offspring is identical to the parent
The bud, when large enough, can break off of the
parent and live on its own
Offspring may remain attached and form a colony
Examples: Yeast, Hydra, cactus
20. Regeneration: Asexual Reproduction
Regeneration: occurs when an offspring grows
from a piece of its parent.
Producing new organisms: Sea Stars
Sea urchins, sea cucumber, sponges, and
planarians
Producing new body parts: Gecko
Newts, tadpoles, crabs, hydra, and zebra fish
21. Vegetative Propagation: Asexual
Vegetative Propagation: uniform offspring grow
from a part of a parent plant
Parent plants sends out runners
Where the runner touches the ground, roots can
grow
A new plant is produced even if the runner is broken
apart
Each new plant is uniform and identical to the
parent.
Examples: strawberries, potatoes, ivy, crabgrass
22. Advantages: Asexual Reproduction
Enables organisms to reproduce
without a mate
No wasted time and energy
Enables some organisms to rapidly
reproduce a large number of uniform
offspring
23. Disadvantages: Asexual Reproduction
Because their offspring are identical, there is no
genetic variation that can give an organism a
better chance for survival
Example: If a weed killer can kill the parent, it will
also kill the offspring
A whole species can be wiped out from a disease
Dangerous mutations in DNA – if the parent has
the mutation in their DNA, the offspring will have it
too.
25. Activity:
Create a creature that reproduces asexually.
Draw the creature
Describe how the creature reproduces asexually
Describe 1 advantage of reproducing this way
Describe 1 disadvantage of reproducing this way
Name your creature
How the uniform offspring of your creature
