Free Ecosystem (Daily Quiz: 8) NEET Biology Questions & Answers with Detailed Explanation & Full Review

Question-1

Among the following biogeochemical cycles, which one does not have loss due to the respiration?

(a) Nitrogen

(b) Phosphorus

(c) Sulphur

(d) All of these

Question-2

Mass of living matter at a trophic level in an area at any time is called

(a) Detritus

(b) Standing crop

(c) Humus

(d) Standing state

Question-3

Assertion:
Biomass of a species is expressed in terms of dry weight in more accurate than fresh weight.
Reason:
Fresh weight is affected by environment condition.

(a) If both the assertion and reason are true but the reason is not a correct explanation of the assertion.

(b) If both the assertion and the reason are true and the reason is a correct explanation of the assertion.

(c) If the assertion is true but the reason is false.

(d) If both the assertion and reason are false.

Question-4

Assertion:
Decomposers break down complex organic matter into inorganic substances like $CO_2 , H_2 O$ and nutrients.
Reason:
Detritivore breakdown detritus into smaller particles.

(a) If both the assertion and reason are true but the reason is not a correct explanation of the assertion.

(b) If both the assertion and the reason are true and the reason is a correct explanation of the assertion.

(c) If the assertion is true but the reason is false.

(d) If both the assertion and reason are false.

Question-5

Which of the following include(s) ecosystem services ?

1. Purification of air and water by forests.
2. Forests mitigate droughts and flood.
3. Forests act as store house of carbon.
4. Forests influence hydrological cycle.

(a) (i) and (iv)

(b) (i) and (iii)

(c) (i), (ii) and (iii)

(d) All of these