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2.The blood-sucking parasites which attack the outside of the host are called __.

3.A lichen is an example of mutualism between a __ and an __.
4.__ has taken up home in the empty shell of whelks.

User Cassim
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1 Answer

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Answer:

2.ecto parasite

3.Algae and Fungi

4.

User Mohammad Mazraeh
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