set 4 MCQ Questions & Answers Detailed Explanation

Question : 1

Read the given statements.
Assertion (A):
The root systems of desert plants are longer.
Reason (R):
High temperature of soil encourages the growth of roots.
Referencing above, which one is the right answer?
Code

a) Both (A) and (R) are true, but (R) is not the correct explanation of (A)

b) (A) is true, but (R) is false

c) Both (A) and (R) are true and (R) is the correct explanation of (A)

d) (A) is false, but (R) is true

Question : 2

Of the following, which one is a true fish?

a) Crayfish

b) Jellyfish

c) Silverfish

d) Catfish

Question : 3

Opium is obtained from

a) Roots

b) Latex from unripe fruit

c) Dried leaves

d) Latex from ripe fruit

Question : 4

Heroin is obtained from

a) Opium poppy

b) Tobacco

c) Indian hemp

d) Areca nut

Question : 5

A group of archaebacteria is used in the production of

a) Methane

b) Acids

c) Ethane

d) Alchohols

Question : 6

Poison gland of snakes is homologous to

a) Stings of rays

b) Sebaceous glands of mammals

c) Electric organ of fishes

d) Salivary gland of vertebrates