The gradual decline in men's testosterone levels in middle age can reduce their sex drive
Answer:
1 dangerous mutations
Explanation:
Cloning could mutation but it's obvious because to clone you'll have to put something into the person to make every thing realistic.
Answer:
Variability was seen as imperfection, so natural selection could only eliminate the inferior and imperfect, not giving rise to new things, new species.
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Answer:
i had to list all the facts cuz we didnt have a diagram
Explanation:
The mantle is the mostly-solid bulk of Earth's interior. The mantle lies between Earth's dense, super-heated core and its thin outer layer, the crust. The mantle is about 2,900 kilometers (1,802 miles) thick, and makes up a whopping 84% of Earth's total volume.