Answer:
Variation allows some individuals within a population to adapt to the changing environment. Because natural selection acts directly only on phenotypes, more genetic variation within a population usually enables more phenotypic variation.
Explanation:
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Answer:
Not all matter and waves move the same direction, some do though
Explanation:
transverse wave--matter in the medium moves back and forth at right angles to the direction that the wave travels
compressional wave--matter in the medium moves back and forth along the same direction that the wave travels
Answer:
a fossil that is useful for dating and correlating the strata in which it is found.
Explanation:
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TRUE. the placenta develops in the mother's uterus during pregnancy. The structure provides oxygen and nutrients to the growing baby and removes waste products from the babys blood