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serious [3.7K]
3 years ago
15

They are always harmful but never beneficial or neutral.

Biology
2 answers:
irga5000 [103]3 years ago
6 0

Answer:

Are you referring to symbiotic relationships between organism? If so, the answer would be parasitism.

One organism, a parasite, takes advantage of another organism at the expense of the host organism.

Ex. A tick bites a dog for blood to use as food. The dog gets an uncomfortable bug bite and the dog might catch a tick borne disease.

Alchen [17]3 years ago
5 0

Answer: parasitism

Explanation:

parasitism is a symbiotic relationship between 2 organisms, where one organism (the parasite), lives on/in another organism (the host), causing it some harm.

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