Q. 33.9( 12 Votes )
The second trophic level in a lake is
Zooplanktons are the part of aquatic food chain and consumes phytoplankton. As they are present at the second level in a food chain they form the second trophic level.
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(a) The graph given below represents the organisms’ response to temperature as an environmental condition.
(i) Which one of the two lines represents conformers and why?
(ii) What does the other line in the graph represent and why?
(b) Mention the different adaptations the parasites have evolved with, to be able to successfully complete their life cycles in their hosts.
Draw the pyramids of biomass in sea and in a forest. Explain giving reasons why are the two pyramids different?
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The following diagrams are the age pyramids of different populations. Comment on the status of these populations.
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Poaching of tiger is a burning issue in today's world. What implication would this activity have on the functioning of the ecosystem of which the tigers are an integral part?Biology - Exemplar