Explanation:
A hypothesis is defined as an educated guess , while a research question is simplify a research wondering about the world .
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Answer:
A. Parasitism, because the flee is benefitting and the mammal is harmed.
Explanation:
Parasitism is when one organism which is a parasite lives on another which is the host, and gaining benefits from it and at the same time maiming havoc to it. Parasitism is common among living organisms. Animals are most times the host to a range of parasitic organisms which include viruses, bacteria, fungi,protozoa, also flea, tick, mites etc.
Parasites like fleas, tick and leeches live on the body surface of their host, which is make them ectoparasites while those that live inside their hosts are endoparasites.
