Ecological Principles-Ecosystem Ecology [CSIR (Council of Scientific & Industrial Research) Life Sciences]: Questions 1 - 4 of 13
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Question 1
Appeared in Year: 2011
Question MCQ▾
Which of the following statements about the concentration of CO2 in the Earth՚s atmosphere is true? (December)
Choices
Choice (4) | Response | |
---|---|---|
a. | It has steadily increased since the formation of the Earth՚s atmosphere | |
b. | It has steadily decreased since the formation of the Earth՚s atmosphere | |
c. | It was the highest in the very early atmosphere of the Earth | |
d. | Its level today are the highest in the Earth՚s history |
Question 2
Appeared in Year: 2014
Question MCQ▾
Which of the following is the correct decreasing order for the rate of decomposition of litter constituents? (December)
Choices
Choice (4) | Response | |
---|---|---|
a. | Lignin, phenol, hemicellulose, cellulose | |
b. | Cellulose, hemicellulose, phenol, lignin | |
c. | Hemicellulose, cellulose, phenol, lignin | |
d. | Hemicellulose, cellulose, lignin, phenol |
Question 3
Appeared in Year: 2018
Question MCQ▾
Individuals occupying a particular habitat and adapted to it phenotypically but not genotypic ally are known as (June)
Choices
Choice (4) | Response | |
---|---|---|
a. | Ecophenes | |
b. | Cenospecies | |
c. | Ecotypes | |
d. | Ecospecies |
Question 4
Appeared in Year: 2018
Question MCQ▾
Which one of the following is the correct increasing order for the daily net primary productivity (NPP) per unit leaf area in different ecosystems? (December)
Choices
Choice (4) | Response | |
---|---|---|
a. | Tropical forests Temperate forests Deserts | |
b. | Temperate forests Tropical forests Deserts | |
c. | Deserts Temperate forests Tropical forests | |
d. | Deserts Tropical forests Temperate forests |