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Organisms and Populations

Commensalism, Predation, Parasitism

(a) Write how parasites have evolved with adaptation to co-exi

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(a) Write how parasites have evolved with adaptation to co-exist with their hosts in an ecosystem.
(b) Parasites are host specific and tend to co-evolve. How would the parasite respond if the host evolves a certain mechanism to resist or reject the parasite ?

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Class 12th Board 2020

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(a) Write how parasites have evolved with adaptation to co-exist with their hosts in an ecosystem.
(b) Parasites are host specific and tend to co-evolve. How would the parasite respond if the host evolves a certain mechanism to resist or reject the parasite ?

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Text solutionVerified

a) Adaptations of parasite to co-exist with their hosts - Loss of unnecessary sense organs, presence of adhesive organs / suckers , loss of digestive system , high reproductive capacity.
b) If the host evolves special mechanism for rejecting or resisting a parasite the parasite has to evolve a mechanism to counteract and neutralize them.

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Question Text	(a) Write how parasites have evolved with adaptation to co-exist with their hosts in an ecosystem. (b) Parasites are host specific and tend to co-evolve. How would the parasite respond if the host evolves a certain mechanism to resist or reject the parasite ?
Topic	Organisms and Populations
Subject	Biology
Class	Class 12
Answer Type	Text solution:1
Upvotes	124

(a) Write how parasites have evolved with adaptation to co-exist with their hosts in an ecosystem.
(b) Parasites are host specific and tend to co-evolve. How would the parasite respond if the host evolves a certain mechanism to resist or reject the parasite ?

Text solutionVerified

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(a) Write how parasites have evolved with adaptation to co-exist with their hosts in an ecosystem.(b) Parasites are host specific and tend to co-evolve. How would the parasite respond if the host evolves a certain mechanism to resist or reject the parasite ?

Text solutionVerified

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(a) Write how parasites have evolved with adaptation to co-exist with their hosts in an ecosystem.
(b) Parasites are host specific and tend to co-evolve. How would the parasite respond if the host evolves a certain mechanism to resist or reject the parasite ?