Answer:
Ectoparasites may affect trade-offs between life history traits in a number of different ways (Moller 1993a). There is some field evidence which suggests that ectoparasite numbers increase with the advancement of the season (Loye and Carroll 1991).
Explanation:
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The substance is a compound because it's formed by two different elements.
The answer is F1 generation
B a very large molecule made of smaller molecules