The beginning of the Cambrian Period is marked by the evolution of hard body parts such as calcium carbonate shells. ... These body parts fossilize more easily than soft tissues, and thus the fossil record becomes much more complete after their appearance.
False, Eukaryotic cells always contain a nucleus, prokaryotic cells do not have a nucleus.
Answer:
Explanation:
Heredity is the component that is not a main factor in the health triangle.
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