Home
Class 12
BIOLOGY
A more conservative and scientifically s...

A more conservative and scientifically sound estimate about the total number of species present on earth, was made by
(a) Robert May
(b) Paul Ehrlich
(c) David Tilman
(d) Both A and B

Text Solution

Verified by Experts

The correct Answer is:
A
A more conservative and scientifically sound estimate about the total number of species present on earth, was made by Robert May.
Promotional Banner

Similar Questions

Explore conceptually related problems

What is the total number of species present on earth as estimated by Robert May ? (a) 3 million (b) 5 million (c) 7 million (d) 9 million

Rivert popper hypothesis was given by (a) Paul Ehrlich (b) Alexander von Humboldt (c) David Tilman (d) Robert May

Presently, total number of biodiversity hotspots in the world is (a) 25 (b) 34 (c) 37 (d) 40

Five cities A,B,C,D,E are connected to each other by straight roads. What is the total number of such roads?

Ex situ conservation is used for the conservation of (a) all plants (b) all animals (c) threatened animals and plants (d) both (a) and (b)

Assertion : Offsite collections can be used to restock depleted populations, reintroduce species in the wild and restore degraded habitats. Reason : In situ conservation refers to the conservation of endangered species in their natural habitats. (a) If both assertion and reason are true and reason is the correct explanation of assertion. (b) If both assertion and reason are true but reason is not the correct explanation of assertion. (c) If assertion is true but reason is false. (d) If both assertion and reason are false.

Which of the following is not a features of biodiversity hotspots? (a) Large number of species (b) Abundance of endemic species (c) Mostly located in the polar regions (d) Mostly located in the tropics

Western ghats have a greater number of amphibian species than the Eastern ghats. What kind of diversity does it represent ? (a) Species diversity (b) Genetic diversity (c) Ecological diversity (d) None of these

Amazon rainforests are considered as 'lungs of the planet' as they contribute______of the total oxygen in the earth's atmosphere. (a) 10 % (b) 15 % (c) 20 % (d) 30 %