NCERT Biodiversity mcqs NEET 2021,mcqs,questions,answers,solutions,tests

Biodiversity and Conservation Mock Exam-6

Question No:1

The species diversity of plants (22%) is much less than that of animals (72%), what could be the explanation to how animals achieved greater diversification?

[A] Animal are non-motile.
[B] Their movement to diverse habitats resulted in more evolutionary changes occurring in animals.
[C] Animals use carbohydrate and lipid as a source of energy
[D] Animal DNA is different from plant DNA in terms of type of nitrogen bases.



Question No:2

Which extinction is presently in progress?

[A] Fifth
[B] Sixth
[C] Forth
[D] Third



Question No:3

Which of the following require large territories?

[A] Birds
[B] Amphibians
[C] Mammals
[D] Both (a) and (c)



Question No:4

Presently which of the following face maximum threat of extinction?

[A] Birds
[B] Amphibians
[C] Mammals
[D] Gymnosperm



Question No:5

Loss of biodiversity in a region leads to increase in variability in certain ecosystem processes like

[A] Plant productivity
[B] Water use
[C] Pest and disease cycle
[D] All of these



Question No:6

Gametes of threatened species can be preserved in viable and fertile condition for long periods using

[A] PCR technique
[B] CTAB
[C] Cryopreservation technique
[D] In situ conservation



Question No:7

At present, how many biosphere reserves does India have?

[A] 11
[B] 14
[C] 17
[D] 20



Question No:8

How many biodiversity hotspots are found in the world?

[A] 25
[B] 34
[C] 9
[D] 20



Question No:9

Hotspot is a region of

[A] Endemism
[B] Accelerated habitat loss
[C] Low level of species richness
[D] Both (a) and (b)



Question No:10

Following are direct benefits from biodiversity except

[A] Firewood
[B] Fibre
[C] Food
[D] Pollination



Question No:11

Following are indirect benefits from biodiversity except?

[A] Pest control
[B] Climate moderation
[C] Flood control
[D] Dyes, resins and perfumes



Question No:12

Which area of M.P. (Madhya Pradesh) contain sacred groves?

[A] Sarguja
[B] Chanda
[C] Bastar
[D] All of these



Question No:13

Find the incorrect match.

[A] Pollinator — Bees, Bumblebees, Bats and Birds
[B] Legally protected biodiversity rich region – Biosphere reserve, National park, wildlife sanctuaries, sacred groves
[C] Lung of planet – Amazonian rain forest
[D] Rivet popper hypothesis – Harvard ecologist Paul Ehrlich



Question No:14

Stellar’s Sea cow became extinct from

[A] Mauritius
[B] Africa
[C] Russia
[D] Australia



Question No:15

Strict protection of hotspots can reduce ongoing mass extinction by

[A] 20%
[B] 30%
[C] 40%
[D] 50%