The two differences you see when comparing the four chambers of the heart is that the arteries have a thicker wall and veins have thin walls and that the arteries carry oxygenated blood away from the heart which means they get more pressure than veins.
Answer: A,B, and C.) Only somatic mutations are important to evolution because they can be inherited. Acquired mutations are passed down from parent to offspring. Hereditary mutations are caused by external factors, such as radiation.
Explanation:
Its dark enegry
Dark energy is like a rapid ageing proces to the earth, its not that the galxaies are moving away from us than that the earth is get bigger.
Archaeppteryx is called the connecting link between which classes?
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Parasympathetic division<span> of the autonomic </span>nervous system<span>. </span>