Question Text
Question 1 :
Soon after fertilisation, the zygote divides repeatedly and travels down the__________
Question 3 :
Animals exhibiting external fertilisation produce a large number
of gametes. Pick the appropriate reason from the following.
Question 6 :
In human beings, after fertilisation, the structure which gets
embedded in the wall of uterus is
Question 7 :
The process of the fusion of the gametes is called ___________
Question 8 :
The eggs of frogs do not have shells for protection, yet they are safe in water. How?
Question 9 :
Is the statement correct : Reproduction happens generally in two modes. These are Sexual reproduction and Asexual reproduction. ?
Question 10 :
Stages in the life cycle of silkworm are given below. Write them in sequential order. Pupa, Silkworm, Egg, Silkmoth.
Question 13 :
A tadpole develops into an adult frog by the process of___________
Question 15 :
State the following statement True or False:-
In each hydra, there may be one or more bulges. These bulges are the developing new individuals and they are called buds.
Question 18 :
Egg laid after fertilisation is made up of a single cell.