Question

what is lichen ?
and parasites.
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Answer 1

★᭄ꦿ᭄Answer★᭄ꦿ᭄

= A parasite is an organism that lives on or in a host organism and gets its food from or at the expense of its host. There are three main classes of parasites that can cause disease in humans :- protozoa, helminths, and ectoparasites.

= Lichens are a complex life form that is a symbiotic partnership of two separate organisms, a fungus and an alga. The dominant partner is the fungus, which gives the lichen the majority of its characteristics, from its thallus shape to its fruiting bodies. Many lichens will have both types of algae.

Answer 2

Lichens:

Lichens are a complex life form that is a symbiotic partnership of two separate organisms, a fungus and an alga. The dominant partner is the fungus, which gives the lichen the majority of its characteristics, from its thallus shape to its fruiting bodies. Many lichens will have both types of algae.

Parasites:

Parasites are a symbiotic relationship between species, where one organism, the parasite, lives on or inside another organism, the host, causing it some harm, and is adapted structurally to this way of life.

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