Free Organisms And Populations (Daily Quiz: 15) NEET Biology Questions & Answers with Detailed Explanation & Full Review

Question-1

The number of individuals per unit area or volume is known as . . .

(a) population growth

(b) population density

(c) community ecology

(d) population distribution

Question-2

The response of different organisms to the environmental rhythms of light and darkness is called

(a) phototaxis

(b) vernalization

(c) phototropism

(d) photoperiodism

Question-3

The principle of competitive exclusion was stated by

(a) MacArthur

(b) G. F. Gause

(c) Verhulst and Pearl

(d) C. Darwin

Question-4

Choose the incorrect statement.

(a) Mutualistic relationship evolves when benefits of both species under weight the costs

(b) Mutualistic relationships evolve when benefit of both species out weights the costs

(c) Humans cause ecological imbalance by eradicating common parasites

(d) Humans cause altering competition between species

Question-5

If the mean and the median pertaining to a certain character of a population are of the same value, the following is most likely to occur

(a) a T-shaped curve

(b) a bi-modal distribution

(c) a skewed curve

(d) a normal distribution.