When a single cell divides once by mitosis, the product is
a. a single cell with half the dna of the original cell.
b. two cells.
c. four cells.
d. eight cells.?

The unique structure of the neuron is dedicated to the efficient and rapid transmission of neural signals. the relationship between neurons, the spinal cord, and the brain constitutes an elaborate communication system throughout the human body. all but one of the functions listed below are a result of this interaction.

What is the cause hearing loss in human being

Explain how sequences of amino acids in proteins can be used to reveal relationships among organisms.