<span>D. density is your answer</span>
Answer:
The gonads, the primary reproductive organs, are the testes in the male and the ovaries in the female. These organs are responsible for producing the sperm and ova, but they also secrete hormones and are considered to be endocrine glands.
Since it was dropped, it should be the speed of gravity which is 9.8 meters/second
Because we can reproduce with just one and if more eggs were released, the female reproductive life (which is 40 years) would be shorter and so there would be less time for every female human to reproduce since the amount of eggs is limited. (Also fraternal twins come from 2 eggs released at the same time)
He needs to measure when he draws the Simpson characters to make sure they are the same time each time he draws them