Which of these is an example of mutualism? A. Cows benefit from eating grass, and the grass is damaged.
B. Vultures benefit from eating dead animals, and the dead animals are removed.
C. Bears benefit from eating fish, and the fish are harmed.
D. Bees benefit from drinking nectar from flowers, and the flowers are pollinated.

D. Bees benefit from drinking nectar from flowers, and the flowers are pollinated.

Explanation:

Mutualism is when two different living things benefit from each other. When bees drink nectar from flowers, they are benefitting from that because they get nectar. The flowers are also benefitting from this because they are being pollinated.

A. is incorrect because the grass does not benefit

B. is incorrect because the dead animals are dead so they don't benefit from this

C. is incorrect because the fish are harmed and do not benefit from this

Therefore, the only correct answer is D.

the diploid number of chromosomes is sometimes represented by the symbol 2n. for the fruit fly, the diploid number is 8, which can be written as 2n = 8, where n represents twice the number of chromosomes in a sperm or egg cell.