<span>Polydactyly in its most common form, is an autosomal dominant mutation. Let's represent the mutation as P and the normal state as +. Thus, if both parents are heterozygous (P+), both would have the mutation (and thus have six fingered). They have 3/4 chances of having a child with the extra digit, 1/4 normal. </span>
Answer:
B
Explanation:
Commensalism is a type of symbiotic relationship in which one species benefits, while the other species is neither harmed nor helped.
C) this is typical of a subsection zone
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Answer:
A. decomposers transfer nutrients back to the soil
