Question

1. Which one of the following has the

largest population in a food chain?

a. Producers

b. Primary consumers

c. Secondary consumers

d. Decomposers

2. The second trophic level in a lake is

________________

a. Phytoplankton b. Zooplankton

c. Benthos d. Fishes

3. Secondary consumers are __________

a. Herbivores b. Producers

c. Carnivores d. Autotrophs

4. What is the % of photosynthetically

active radiation in the incident solar

radiation?

a. 100% b. 50 %

c. 1-5% d. 2-10%

6. Give the term used to express a community

in its final stage of succession?

a. End community

b. Final community

c. Climax community

d. Dark community

7. After landslide which of the following

type of succession occurs?

a. Primary b. Secondary

c. Tertiary d. Climax

8. Which of the following is most often

a limiting factor of the primary

productivity in any ecosystem.

a. Carbon b. Nitrogen

c. Phosphorus d. Sulphur​

Answer 1

Explanation:

1.producers

2.Zooplankton

3.Carnivores

4.50 %

5.Climax community

6.Secondary

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