Answer: Parasitism
Explanation:
The deer and tick have a parasitism relationship as only the tick benefits from the relationship and the deer is being harmed. If Both were benefiting it would differ.
The cardiovascular and immune
SOS:
The answers is:
In a dihybrid cross, the F2 will have nine genotypes, but only four phenotypes because the <u><em>Heterozygous</em></u> genes cause the <u><em>Dominant</em></u> traits to mask the <u><em>Recessive</em></u> traits.
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The answer is C. I know that because of my previous knowledge and my class knowledge hope this helps :)<span />
