How have the earth systems and life co-evolved over time?

20. in humans, freckles are dominant to no freckles. trey has no freckles and his wife anna grace has freckles, but her dad doesn't. they want to know what percentage of their kids would look like trey. show a punnett square to support your answer.

Any sound above what db can cause hearing loss in human beings

In "the man in the water," what was the remarkable occurrence that rosenblatt reported?