Assertion : All protozoans are heterotrophs.Reason: All protozoans live as parasites in the bodies of other living organisms.
Both assertion and reason are correct and reasons correctly explains the assertion.
Both assertion and reason are correct and reason does not explain the assertion.
Assertion is correct and reason is incorrect.
Both assertion and reason are incorrect.
All protozoan are heterotrophs but all are not parasites. Only some are parasites and some are predators and free-living.