Ecosystems [NTA-NET (UGC-NET) Environmental Science (89)]: Questions 1 - 5 of 196
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Question 1
Appeared in Year: 2017
Question MCQ▾
A structure with hundreds of species non-linearly interlinked for their livelyhood is called:
Choices
Choice (4) | Response | |
---|---|---|
a. | Guild | |
b. | Pyramid | |
c. | Food chain | |
d. | Food web |
Question 2
Appeared in Year: 2018
Question MCQ▾
Ratio of energy transfer at different trophic levels in the food chain is called: (July)
Choices
Choice (4) | Response | |
---|---|---|
a. | Ecological efficiency | |
b. | Metabolic efficiency | |
c. | Food chain complexity | |
d. | Energy flow rate |
Question 3
Appeared in Year: 2017
Question MCQ▾
As the number of species in a food web increases (January)
Choices
Choice (4) | Response | |
---|---|---|
a. | Food chain length tends to increase. | |
b. | System tends to be unstable. | |
c. | Energy flow decreases. | |
d. | System tends to collapse completely. |
Question 4
Appeared in Year: 2017
Question MCQ▾
The point at which the light intensity is just enough to produce energy by photosynthesis which equal to the energy used in respiration is called (January)
Choices
Choice (4) | Response | |
---|---|---|
a. | Regulatory point | |
b. | Compensation point | |
c. | Complementary point | |
d. | Equal point |
Question 5
Appeared in Year: 2017
Question MCQ▾
C4 plants are commonly found in (January)
Choices
Choice (4) | Response | |
---|---|---|
a. | Humid and low temperature environment | |
b. | Semi-humid and rainy environment | |
c. | Arid and hot environment | |
d. | Temperature environment |