Ecological Principles-Species Interactions [CSIR (Council of Scientific & Industrial Research) Life Sciences]: Questions 1 - 3 of 10

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Question 1

Appeared in Year: 2014

Question MCQ▾

An example of the species interaction called commensalism is (December)

Choices

Choice (4)Response

a.

Nitrogen- fixing bacteria in association with legume plant roots

b.

Female mosquito deriving nourishment from human blood

c.

Orchid plant growing on the trunk of the mango tree

d.

A microbes in living human gut

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Question 2

Appeared in Year: 2018

Question MCQ▾

Following certain statement regarding energy efficiencies of ectotherms and endotherm (June)

1 Ectotherms have high assimilation efficiency but low production efficiency.

2 Ectotherms have low assimilation efficiency but high production efficiency.

3 Endotherms have high assimilation efficiency but low production efficiency.

4 Endotherms have low assimilation efficiency but high production efficiency.

Which one of the following represents the combinations of correct statements?

Choices

Choice (4)Response

a.

3 and 4

b.

1 and 2

c.

2 and 3

d.

1 and 3

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Question 3

Appeared in Year: 2018

Question Match List-Ⅰ List-Ⅱ▾

Given below in Column A are schematic representations of three types of pairwise species interactions and the name of some interactions are in Column B. (December)

List-Ⅰ (Column-I)List-Ⅱ (Column-II)
(A)

Herbivore

The Herbivore
(i)

Direct Amensalism

(B)
The a & B
(ii)

apparent competition

(C)

Shared resource

The Shared Resource
(iii)

Interference competition

Choices

Choice (4)Response
  • (A)
  • (B)
  • (C)

a.

  • (ii)
  • (i)
  • (iii)

b.

  • (ii)
  • (iii)
  • (i)

c.

  • (i)
  • (ii)
  • (iii)

d.

All of the above

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