Answer:
Well, Many protists are harmful to humans, other animals and plants because they cause diseases and crop failures. However, some protists are actually beneficial to other creatures and are used by humans for various purposes. Plant-like protists produce almost one-half of the oxygen on the planet through photosynthesis. Other protists decompose and recycle nutrients that humans need to live. For example, medicines made from protists are used in treatment of high blood pressure, digestion problems, ulcers, and arthritis. Hope That Helps!
From ~Itsbrazts~. Have a Great Day!
Answer:
Explanation:
Protists provide many benefits.
⇒They produce almost half of the world's oxygen supply.
⇒ they are an important part of the food web.
⇒ and they have been used in medical and industrial research.
But, like any other organism, they can also inflict harm, particularly to humans. Most harmful protists are classified as animal-like protists that act as parasites, or organisms that benefit from causing harm to other organisms.
some examples:
⇒Malaria is caused by plasmodium.
⇒African sleeping sickness is caused by trypanosoma.
