<span>b The growth of teeth in chickens supports the hypothesis of a common ancestor between birds and reptiles. This is a generally accepted hypothesis, and i'd go with this answer. Obviously we can't say whether chickens will have teeth with certainty, the chickens with teeth are clearly still chickens, and a baby croc isn't hatching out of a chicken egg any time soon.
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I believe the answer is A
Answer:
A
Explanation:
Correct answer is
A.) No. Theories can be refined and improved over time, but cannot become scientific laws.
Systemic circulation is the circulation of blood through<span> the arteries, capillaries, and veins of the general system.
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Evolution is the theory of slow change during long time periods.
