Number of protons - 3
number of neutrons - 4
number of electrons - 3
Answer:
The answer is option D.
What the organism looked like
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Arteries carry blood away from the heart
Answer:
A mutation is a change that occurs in our DNA sequence, either due to mistakes when the DNA is copied or as the result of environmental factors such as UV light and cigarette smoke.
Answer:
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Explanation:
Earth's amazing gaseous atmosphere is responsible for making life possible on this, the third planet from the Sun. Our atmosphere contains water vapor which helps to moderate our daily temperatures. Our atmosphere contains 21% oxygen, which is necessary for us to breathe, 78% nitrogen,
