Question 1

Plant species having a wide range of genetical distribution evolve into a local population knows as :

Accepted Answer

Correct answer is A

Question 2

The geographic limit within which a population exists is called:

Accepted Answer

Correct answer is C

Question 3

Reproductive isolation between segments of a single population is termed:

Accepted Answer

Correct answer is A

Question 4

Which is not applicable to the biological species concept?

Accepted Answer

Correct answer is A

Question 5

Identify the correctly matched pair:

Accepted Answer

Kyotoprotocol is an international conference held in Kyoto, Japan obtained commitments from different countries for reducing overall greenhouse gas emissions by 2008-2012.

Question 6

Which of the following is correct?

Accepted Answer

Correct answer is A

Question 7

The organisms spending most of the time in transitional area between two communities are called:

Accepted Answer

Uniform interbreeding population or group of individuals which freely interbreed among themselves, constitute a species.

Question 8

Which of the following statements is true regarding individuals of same species?

Accepted Answer

Uniform interbreeding population or group of individuals which freely interbreed among themselves, constitute a species.

Question 9

Which one of the following correctly represents an organism and its ecological niche?

Accepted Answer

Correct answer is C

Question 10

Niche overlap indicates:

Accepted Answer

Correct answer is A

Question 11

What is a keystone species?

Accepted Answer

Correct answer is C

Question 12

One of the following pair of animals is an example of commensalism:

Accepted Answer

Correct answer is C

Question 13

The ecological niche of population is a:

Accepted Answer

Correct answer is C

Question 14

Two plants can be conclusively said to belong to the same species if they:

Accepted Answer

Correct answer is A

Question 15

The study of inter-relationship between living organisms and their environment is called:

Accepted Answer

The term ecology is derived from two greek words, namely Oikos and Logos. Oikos means 'home' or 'habitation' or a 'place to live in'. Logos means 'study' or 'discourse'. Hence literally speaking, ecology is the study of organisms at home.

Question 16

Term 'ecology' was proposed by:

Accepted Answer

The term ecology is believed to have been coined by Ernst Haeckel (1869) though its first authentic use was made by Reiter (1885).

Question 17

Which one of the following is a population?

Accepted Answer

Correct answer is D

Question 18

E.P. Odum is a leading:

Accepted Answer

Correct answer is C

Question 19

The term 'biocoenosis' was proposed by:

Accepted Answer

The term biocoenosis is also used for community, which was coined by Carl Mobius (1880).

Question 20

The species of plants that play a vital role in controlling the relative abundance of other species in a community are called:

Accepted Answer

According to Paine (1969), keystone species are those whose role or activities determine community structure.

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Solutions for Organisms and Populations Important Questions

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