Answer: They are responsible for animal migration because the chemicals they contain cause the animals to move to a different environment.
Explanation:
I found this information from https://jeb.biologists.org/content/222/Suppl_1/jeb191890
Answer:
common ancestor. ... Mammals share the homologous structure of the vertebrae in common.
Explanation:
Answer:
solve it yourself lazy boy
Explanation:
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Answer:Stars are formed in clouds of gas and dust, known as nebulae. Nuclear reactions at the centre (or core) of stars provides enough energy to make them shine brightly for many years. The exact lifetime of a star depends very much on its size.
Answer: The 3rd one, answer C
