Question

Which of the following statements regarding food chain are correct? 1.In Grazing type of food chain green plants are the producers and constitute the first trophic level. 2. In detritus type of food chain the starting point is the dead bodies usually called detritus. 3. In pond ecosystem the food chain starts from phytoplanktons to large fishes,small fishes and ends with zooplanktons. 4. In grassland ecosystem the food chain starts from grasses, goes through herbivores and ends with carnivores. Which of the statements given above are correct?

2 points

a) 1,2 and 3 only

b) 2,3 and 4 only

c) 1,2 and 4 only

d) All are correct

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Answer 1

1. First one is true as grazing is a type of food chains for a green plants known as producers.

2. The second one is also true as the starting of food chain of the dead bodies always starts from pyplanktons.

3. the third one is false.

4. True

$<marquee>1 , 2 AND 4 is correct$

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