Question

8. What do you mean by parasites and the host?
9. What is autotrophic mode of nutrition?
10. What is heterotrophic mode of nutrition?
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Answer 1

Answer:

Parasites are the organism which lives on other organism (host) for food,without harming the host.

When the organism make food by themselves by using simple substance that is called autotrophic mode of nutrition.

When the organism takes food from other organism and cannot make food by themselves using simple substance that is called hetrotrophic mode of nutrition.