Answer:
air resistance or drag, (Option B)
Explanation:
84.798 is the mass number
Water is less dense as a solid than as a liquid the answer is D
Answer: They compare the number of mutations to determine how long ago species separated and evolved.
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A phylogenetic tree,<span> or </span>evolutionary tree,<span> is a branching </span>diagram<span> or "</span>tree<span>" showing the inferred </span>evolutionary<span> relationships among various biological </span>species<span> or other entities </span>based upon similarities and differences in their physical or genetic characteristics. The taxa joined together in the tree are implied to have descended from a common ancestor<span>.</span><span />