Excretion in Other Animals and Plants

Q. Choose the waste products of plants from the options given below.

Q.

Humans, dogs and cows are mammals.

1. True

2. False

Q.

What does the white colored substance in bird droppings consists of?

1. Urea
2. Ammonia
3. Uric acid
4. Water

Q. Organisms that have hollow bones and can fly belong to the class:

1. Amphibia
2. Pisces
3. Reptilia
4. Aves