Free Biodiversity And Conservation (Daily Quiz: 12) NEET Biology Questions & Answers with Detailed Explanation & Full Review

Question-1

How do ecologists estimate the total number of species present in the world?

(a) By counting the number of any one species and applying this to various genus.

(b) By counting them all.

(c) By making statistical comparison of the temperate–tropical species richness of an exhaustively studied group of insects and extrapolating this ratio to other group of animals and plants.

(d) By calculating biomass of all the species.

Question-2

Antilopa carvicapra/Black Buck is –

(a) Endangered

(b) Vulnerable

(c) Critically endangered

(d) Extinct in the wild

Question-3

Which is the correct formula of the graph shown below?
Given:
S-species richness
A-Area
C-Y-intercept
Z-Slope of line (regression coefficient)

(a) $S = CZ^A$

(b) $S = CA^Z$

(c) $S = ZC^A$

(d) $Z = SC^A$

Question-4

Diversity of habitat over the total landscape is called

(a) γ diversity (gamma)

(b) β diversity

(c) landscape diversity

(d) ecosystem diversity

Question-5

Which of the following is the most important cause of animals and plants being driven to extinction?

(a) Co-extinctions

(b) Over-exploitation

(c) Habitat loss and fragmentation

(d) Alien species invasion