Certain parasites, such as intestinal tapeworms, cannot survive outside of their host. Why are they still considered alive?

Question

Answer

Because they cannot survive outside of the host, parasites are actually not considered alive.

Answer

Parasites are still considered alive because they are studied by biologists, and biology is the study of life.

Answer

As long as parasites are made of cells, they are considered to be alive.

Answer

Survival outside of a host is not a requirement for life.

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