Page 106 - Science Class 08

Project ActivityActivityActivity
Project
Project
Project Activity
A. Complete the crossword with the help of clues given below.
1 2 3
F T Z

4
I

Across Down

1. The process of the fusion of the gametes. 2. Sperms are produced in these male
4. The type of fer lisa on in hen. reproduc ve organs.
3. Another term for the fer lised egg.

B. Find out about reproduc on in the case of honeybees. What is the bee that lay eggs called?
Which bee feed the egg-laying bee and look a er the young ones? Which egg hatch into males
and which into females?

HO
HO
HOTSTSTS
HOTS
A. Frogs and fishes lay hundreds of eggs at a me, however, their popula on is very li le as
compared to the number of eggs they lay. Why?
B. What do you think would have happened if human also gave birth to a larger number of babies
at the same me?
C. Under what circumstances can twins be born in humans?

106 Science-8