This document summarizes reproduction in animals. It describes sexual reproduction, which involves the fusion of male and female gametes, and asexual reproduction, which involves a single parent. The male reproductive organs include testes and sperm ducts that produce sperm, while female organs include ovaries, oviducts, and a uterus that produce eggs. Fertilization is the fusion of an egg and sperm to form a zygote. It can occur internally or externally. The zygote develops into an embryo and later a fetus with identifiable body parts. Animals can be viviparous and give birth, or oviparous and lay eggs. Asexual reproduction occurs through budding in hydra or binary fission in a

1. CHAPTER 6
REPRODUCTION IN ANIMAL -

2. INTRODUCTION
• Name- Aadarsh Raj sahu
• Class- 8 ‘B’
• Roll- 8201
• Sub- Science
• guidance by –Neha Sikdar mam

3. REPRODUCTION OF
ANIMALS.
• INTRODUCTION OF REPRODUCTION
• REPRODUCTION IS A BIOLOGICAL PROCESS BY WHICH AN ORGANS
REPRODUCED AN OFFSPRING THAT IS BIOLOGICAL SIMILAR TO
THE ORGANISM
• IT IS ENABLES AND INSURERS THE CONTINUITY OF SPECIES

4. TYPES OF REPRODUCTION

5. SEXUAL REPRODUCTION & ASEXUAL
REPRODUCTION
THIS TYPE OF REPRODUCTION IS BEGINNING FROM THE FUSION OF MALE AND FEMALE
GAMETES IS CALLED REPRODUCTION EXAMPLE- HUMAN , ANIMAL
ASEXUAL REPRODUCTION
IN THIS TYPE OF REPRODUCTION INVOLVED ONLY SINGLE PARENT IS CALLED ASEXUAL
REPRODUCTION EXAMPLE- AMOEBA,HYDRA

6. Male reproductive organs –
Male reproductive organs included pair of testes ,two sperm
ducts and penis . The testes produce the male gametes is called
sperm
Look at the image Given below -
REPRODUCTIVE PARTS OF HUMANS

7. FEMALE REPRODUCTIVE ORGAN
• The female reproductive organ are a pain of ovaries ,oviducts
(fallopian tubes) and the uterus. The ovary produces female
gametes called ova (Egg)
• Look at the image Give below -

8. WHAT IS FERTILISATION ???
• Fusion of the egg and the sperm is called Fertilisation.
• During Fertilisation the nuclei of the sperm and the egg fuse
to from a single nucleus this result in the formation of a
fertilised egg or Zygote
look at the image given below—

9. TYPES OF FERTILISATION
• Internal fertilisation
• External fertilisationn
• Internal fertilisation ---- fertilisation that takes place in
side female body Is called internal Fertilisation. This is
observed in human beings And other Animals Such As
hens, cows and dogs etc.
• External Fertilisation --- Fertilisation that takes place out
side female body it is called external fertilisation. This is
observed in frogs, fish and starfish etc.

10. • Fertilisation results in the formation of Zygote which begins to
develop into an embryo. the Zygote divides repeatedly to give
rise to a ball of cells. The cells then begin to from group that
develop into different tissues and organs of the body .this
developing structure is termed an embryo.
DEVELOPMENT OF EMBRYO

11. FOETUS
The stage of the embryo in which all the body parts can be
identified is called foetus

12. VIVIPAROUS AND OVIPAROUS ANIMAL
• The animal which give birth to young ones are called
viviparous animals.
• animal which lay eggs are called oviparous animals.

13. METAMORPHOSIS
• The transformation larva into adult through drastic changes is
called metamorphosis. ----

14. ASEXUAL REPRODUCTION
••Examples of sexual reproduction••
… Budding. --In hydra ,new individual develop from buds . This method of
asexual reproduction is called budding

15. BINARY FUSION
• Amoeba reproduces by dividing itself into two . This type of
asexual reproduction is called Binary fission.