WEEK-3-ANIMAL-REPRODUCTION sample presentation.ppt

Earth and life

3. O C P R I
RETUNOD

4. REPRODUCTIONREPRODUCTION

5. REPRODUCTIONREPRODUCTION
- Is a biological process by which new - Is a biological process by which new
organisms are produced.organisms are produced.

8. REPRODUCTIONREPRODUCTION
OF ANIMALSOF ANIMALS

9. ANIMAL SEXUAL ANIMAL SEXUAL
REPRODUCTIONREPRODUCTION
occurs when female reproductive cells
are merged with male reproductive
cells to form a new animal that is a
genetic combination of the parent
animals.

10. ASEXUAL REPRODUCTIONASEXUAL REPRODUCTION
Asexual reproduction produces an
identical genetic copy of the parent
animal instead of merging the genes of
two parents.
Common kinds of asexual reproduction
include budding, fragmentation and
regeneration and parthogenesis.

11. 
FissionFission

the separation of the parent into two or more the separation of the parent into two or more
offspring of equal size. offspring of equal size. Single-celled organisms Single-celled organisms
((Amoeba, paramecium, euglenaAmoeba, paramecium, euglena) )

12. BuddingBudding

new individuals split off from existing onesnew individuals split off from existing ones. .
Ex. hydraEx. hydra

13. 
Fragmentation and regenerationFragmentation and regeneration

the breaking of the body into several pieces, the breaking of the body into several pieces,
some or all of which develop into new adults.some or all of which develop into new adults.
Ex. Corals and starfishEx. Corals and starfish
Pieces of coral broken off in storms
can grow into new colonies.
A new starfish can grow from
one detached arm.

14. ParthenogenesisParthenogenesis
Development of unfertilized eggsDevelopment of unfertilized eggs
invertebrates, along with several fish,
amphibians, and reptiles

15. 1.1.What is sexual reproduction and how What is sexual reproduction and how
the process takes place?the process takes place?
2.2.What is a asexual reproduction and What is a asexual reproduction and
explain the different processes?explain the different processes?
Guide Questions:Guide Questions:

16. AGREE/DISAGREEAGREE/DISAGREE
Sexual reproduction is the
formation of offspring by the
fusion of gametes.  
AGREE

17. Hydra, corals and starfish Hydra, corals and starfish
undergo sexual reproductionundergo sexual reproduction
DISAGREEDISAGREE

18. It is impossible that an
offspring grows out of the
body of the parent.
DISAGREEDISAGREE

19. AGREEAGREE
One cell can split into two,
giving you two identical
cells. That type is asexual
reproduction. 

20. AGREEAGREE
Sexual reproduction takes Sexual reproduction takes
place when sex cells from place when sex cells from
two parent animals unite to two parent animals unite to
form a new animal.form a new animal.

21. ASSIGNMENT:ASSIGNMENT:
1.Define and explain 1.Define and explain
development in animals.development in animals.
2. What are the different 2. What are the different
reproduction in plants.reproduction in plants.