TNPSC Biology Questions and Answers in English Pdf Download - 2

Question: 6

Various soil salts and different atmospheric gases are

(A) Abiotic components

(B) Micro consumers

(C) Primary consumers

(D) Secondary consumers

Question: 7

An example of animal, which is bisexual is

(A) Snail

(B) Earthworm

(C) Paramecium

(D) Hydra

Question: 8

Seedless oranges are developed through

(A) Mutation

(B) Freezing

(C) Hormones

(D) Heavy fog

Question: 9

The magnifying power is 2,00,000 to 3,00,000 times in a

(A) Light microscope

(B) Compound microscope

(C) Electron microscope

(D) Dissection microscope

Question: 10

The number of spinal nerves in man are

(A) 13 pairs

(B) 23 pairs

(C) 31 pairs

(D) 45 pairs