Arthropods were the first animals to successfully invade land from the sea
Answer:
D. They find more things that are not understood
Explanation:
After discovering something, scientist tend to find something related that sparks their curiousity.
Answer:
They grow more slowly, reproduce less, and populations decline.
Explanation:
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Answer:
The amount of lipids stored as an energy reserve far exceeds the energy stored as glycogen since the human body is simply not capable of storing as much glycogen compared to lipids. Lipids yield 9 kcal of energy per gram while carbohydrates and proteins yield only 4 kcal of energy per gram.
the male reproductive system consists of external organs. while the female reproductive system consists of internal organs.