reproduction

1. Reproduction
Q4 Week 1
11th Grade

2. 03
02
Appreciate the importance of
reproduction in organisms.
01
OBJECTIVES
Differentiate sexual from asexual
reproduction
Compare the similarities and
differences of internal and
external reproduction

3. Whoa!

4. Reproduction
Reproduction is one of the
most fundamental
processes carried out by
living organisms.
However, there are
differences in the way
living organisms exhibit
the process.

5. Comparison of Reproduction

6. Awesome
Words

7. Asexual
Reproduction
01

8. Asexual Reproduction
01
Asexual reproduction produces offspring that are
genetically identical to the parent because the
offspring are all clones of the original parent.
This type of reproduction occurs in prokaryotic
microorganisms (bacteria) and in some
eukaryotic single-celled and multi-celled
organisms.
02
06 Animals may reproduce asexually through
fission, budding, fragmentation, or
parthenogenesis.

9. Fission
● The term “fission” means “to divide”.
● The parent cell divides into two cells
● Each daughter cell carrying a
nucleus of its own that is genetically
identical to the parent.

10. Budding
● The process of producing an
individual through the buds that
develop on the parent.
● A bud forms that develops into an
adult and breaks away from the
main body.

11. Fragmentation
● The parent body divides into several
fragments and each fragment
develops into a new organism.

12. Parthenogenesis
● A form of asexual reproduction
where an egg develops into a
complete individual without being
fertilized.

13. Sexual
Reproduction
02

14. Sexual Reproduction
01
The production of new organisms by the
combination of genetic information of two
individuals of different sexes.
It is more complex and lengthier as compared to
asexual reproduction.
02
03
It gives the benefit of variation and offsprings
are unique..

15. ● Sexual reproduction starts with
the combination of a sperm and
an egg in a process called
fertilization.
● This can occur either inside
(internal fertilization) or outside
(external fertilization) the body
of the female.

16. External Fertilization
● Usually occurs in aquatic environments
where both eggs and sperm are
released into the water. After the sperm
reaches the egg, fertilization can then
take place.
● Most external fertilization happens
during the process of spawning where
one or several females release their
eggs and the male(s) release sperm in
the same area, at the same time.
● The release of the reproductive material
may be triggered by water temperature
or the length of daylight.

17. Internal Fertilization
● Occurs most often in land-based
animals, although some aquatic
animals also use this method.
● There are three ways that offspring
are produced following internal
fertilization: oviparity, ovoviparity, and
viviparity.

18. Oviparity
● Fertilized eggs are laid
outside the female’s body
and develop there,
receiving nourishment
from the yolk that is a part
of the egg.

19. Ovoviparity
● Fertilized eggs are
retained in the female, but
the embryo obtains its
nourishment from the
egg’s yolk; the young are
fully developed when they
are hatched.

20. Viviparity
● The young develop within
the female, receiving
nourishment from the
mother’s blood through a
placenta. The offspring
develops in the female and
is born alive.

22. Plant Reproduction

33. Take Home
Activity

34. Using white cartolina, make a life
size banner of the internal and
external anatomy of the
reproductive system of plants with
a social media platform
background. Label each part
correctly.

36. CREDITS: This presentation template was created by Slidesgo,
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Thanks!