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zheka24 [161]
3 years ago
8

The _________________ on the surface of a virus determine(s) which host species the virus can infect and which tissues the host

species can enter.
Biology
2 answers:
Andrews [41]3 years ago
3 0
<span>glycoprotein molecules </span>
Viefleur [7K]3 years ago
3 0

<u><em>B. Sorry if its wrong, my wife took the kids.</em></u>

<u><em /></u>

<u><em /></u>

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In which of the following relationships is one organism always benefited while the other organism is always harmed
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Answer:

Parasitism

Explanation:

Parasitism is the form of mutual relationship between two organisms which occurs in such a way that one organism always get benefit and the other always gets harm. The one getting harm may or may not be killed due to it.

There are many common parasitic relationships we see in eco system.For example, when a tick sucks blood out of a dog. it is causing harm to dog by decreasing the content of blood however getting benefit for itself since blood is its food and the nutrients present in blood are source of energy for tick.

Similarly, Malaria is caused in human by a parasite called plasmodium. It enters into the blood and causes a disease called Malaria which can even lead to the death of affected individual,the parasite itself stays healthy and gets benefit.

Hope it help!

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True, the model had to change as new information came to light.

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