Gradual changes occur in the body Part and also in behaviour of organisms which help them to adjust Their Surrounding . such changes are called________ .
4.
The surface of leaves and stem of many aquatic plant are covered with A Waxy layer.
A. 
True
B. 
False
5.
Forest in the equatorial. region are dense.
A. 
True
B. 
False
6.
Single seed Fruit
A. 
Mango
B. 
Apple
C. 
Pea
D. 
Chikoo
7.
............ is the male reproductive part of the flower.
8.
The tip is covered by cap like structure called the... ....
9.
... ...... nomencultures is used to identify each organism.