In human beings, the correct sequence of events during reproduction is

1

(a)

gamete formation, fertilisation, zygote formation embryo

(b)

embryo, zygote formation, fertilisation, gamete formation

(c)

fertilisation, gamete formation, embryo, zygote formation

(d)

gamete formation, fertilisation, embryo, zygote formation

Which of the following is not a viviparous animal?

1

(a)

Rat

(b)

Lizard

(c)

Rabbit

(d)

Cat

The multicellular organism which reproduces by budding is

1

(a)

Amoeba

(b)

Yeast

(c)

Paramecium

(d)

Hydra

Which is not oviparous animals?

1

(a)

Hen

(b)

Frog

(c)

Butterfly

(d)

Dog

Tadpole is the larva of

1

(a)

fish

(b)

frog

(c)

mosquito

(d)

butterfly

______ is very important for continuation of a species.

1

(a)

Reproduction

The _____ divides repeatedly to form an embryo.

1

(a)

zygote

An animal having both male and female reproductive organs is called ______

1

(a)

bisexual

_______ reproduces by budding.

1

(a)

Hydra

Sperms are produced in ______

1

(a)

testes

The fusion of ovum and sperm is called fertilisation.

1

(a) False

(b) True

All living animals reproduce to produce new young ones.

1

(a) False

(b) True

Amoeba reproduces by budding.

1

(a) True

(b) False

An embryo is made up of a single cell.

1

(a) True

(b) False

External fertilisation can occur both in water and on land.

1

(a) True

(b) False

Give another term for a fertilised egg.

2

(a)

The male and female gamete in human beings are known by which names?

2

(a)

Name a unicellular and multicellular animal which can reproduce by asexual methods.

2

(a)

A process by which young ones are formed. What is the process called as?

2

(a)

An organism has both male and female reproductive organs. Is it possible? If yes, name such organism.

2

(a)

Choose the most appropriate answer.
A tadpole develops into an adult frog by the process of
(i) fertilisation
(ii) metamorphosis
(iii) embedding
(iv) budding

3

(a)

Define asexual reproduction. Describe two methods of asexual reproduction in animals.

3

(a)

In which female reproductive organ does the embryo get embedded?

3

(a)

What is metamorphosis? Give examples.

3

(a)

Differentiate between internal fertilisation and external fertilisation.

3

(a)

How can we say that fish exhibits external fertilisation?

5

(a)

Hens and frogs are both oviparous exhibiting different types of fertilisation, explain.

5

(a)