Page 26 - ACTIVE SCIENCE 4 TOC

Practice Time

A. Tick the correct option.

1. The parent animals sit on eggs to keep them warm. This is known as _____________.
a. incubation b. reproduction

c. egg-laying d. nymph
2. The jelly-like white coloured material inside the egg shell is called _____________.
a. yolk b. albumen

c. shell d. larva

3. The transformation from young one to an adult is called _____________.
a. metamorphosis b. incubation
c. reproduction d. mammals

4. Frog eggs look like a huge bunch of jelly known as _____________.
a. spawn b. tadpole

c. caterpillar d. pupa
5. Mammals have well-developed _____________.

a. claws b. tails

c. brains d. hands

B. Fill in the blanks.

1. When the chicks come out, they cannot fly as they are _____________.
2. The outer layer of the egg which protects the contents of the egg is called
_____________.
3. The yolk has all the nutrients which are necessary for the development of a growing
baby called _____________.

4. Snakes and lizards lay their eggs on _____________.

C. State whether the following statements are true or false:

1. The transformation from young one to an adult is called incubation. ______

2. Animals which give birth to young ones and feed them with
their milk are called oviparous. ______
3. The yellow part inside the albumen is called shell. ______

4. Reproduction is the process of producing young ones. ______

5. Reptiles lay their eggs on the ground. ______

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