What is the relationship between better microscopes and the discoveries made about cells?

A) with better microscopes, they could make more discoveries

B) with better microscopes, microscopes were less expensive

C) with better microscopes, cells were more difficult to see

D) with better microscopes, cells were able to be multiplied

What came first egg or chicken? and is tomato a vegetable or a fruit?

An organ system consists of a group of organs that performs specific functions necessary for the survival of an organism. humans have eleven different organ systems: integumentary, skeletal, muscular, nervous, endocrine, circulatory, lymphatic, respiratory, digestive, urinary, and reproductive. discuss the function of neurons, the brain and the spinal cord within the human nervous system while explaining the interrelationship of each organ.

What causes darkening of the skin as melanin production increases