Why is it that a human can bounce a soccer ball off of their forehead with rarely any damage, but a blow to the temple or back of the head can lead to fatal injury?.

Iwould say read. (b)

The human reproductive system uterusthe bird reproductive system eggs dropped

Ican only answer your first question, a machine is like a human body because it's a little similar. they both almost work like the same.

Some of their responsibilities are to evaluate safety, efficiency, and effectiveness of the biomedical equipment. train people on how to properly operate biomedical equipment. lastly is to research the engineering aspects of the biological systems of humans and animals.