Page 63 - Genius Kidz Prudence Learning Sc-8

Examples of organisms reproducing by

binary fission : Amoeba, Euglena and Spores are dispersed
Paramoecium.

Each spore germinates to give rise to a
Amoeba divides
after it has grown new individual.
to a certain size.
Examples of organisms that reproduce
The pseudopodia by spore formation include : Bread
are pulled in and
the nucleus divides. mould, Rhizopus.
Spore
The cell body begins
to divide when the
nucleus has split.

The daughters of Sporangium
amoeba (spor kesesi)
are formed.

Spore Formation in Rhizopus
Binary fission in Amoeba
SEXUAL REPRODUCTION
(ii) Budding :
(i) It is a kind of reproduction involving two
Process :
parents.
Development of protuberance called
bud. (ii) It involves the fusion of male and female
gametes to produce zygote.

Sexual reproduction involves male and female
Enlargement of the bud both.

Human Reproduction : There are two types of
Followed by growth human reproduction
1. Male reproduction system

Detachment of the new individual from 2. Female reproduction system
parent organism 1. Male reproduction system : Human beings

Examples of organisms reproducing by reproduce sexually.
budding : Hydra, Sponges, etc.
Male reproductive system comprises of :
Tenticles
(a) Pair of testes : These are present inside the
scrotal sac. Male sex cells or male gametes
called sperms are produced by testes.
Bud
Testoster-one hormone is also produced by it.
(b) Scrotal sac : It is a bag like structure. Its
Budding in Hydra
(iii) Spore formation : function is to hold up the pair of testes
outside the abdominal cavity.
Process :

Spores are produced in parent cell
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