Answer:
In anatomy, the notochord is a flexible rod formed of a material similar to cartilage. If a species has a notochord at any stage of its life cycle, it is, by definition, a chordate. The notochord lies along the anteroposterior ("front to back") axis, is usually closer to the dorsal than the ventral surface of the animal, and is composed of cells derived from the mesoderm.
C: capillaries are the smallest blood vessels that allow exchange of gases and nutrients.
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Answer:
Yes
Explanation:
It talks about the natural selection of small, inherited variations that increase the individuals ability to compete survive and reproduce
Answer:
organisms are very numerous and diverse
Answer:Human plasmid can mutate
Explanation:
