The spinal cord is made up of the pons and the medulla.
the brain and the brain stem.
white and gray matter.
gray matter only.

Dna is colied into chromosomes in a cell

Which statement best describes lactic acid fermentation? a. lactic acid fermentation is the first step of cellular respiration. o b. lactic acid fermentation is the final step of cellular respiration. re to berate c. in the absence of oxygen, cells release atp by breaking down lactose into glucose. e der lade res o d. in the absence of oxygen, cells release atp by breaking down glucose into lactate. ar

In the diagram below, the northern hemisphere would be in what season at position a a.fall b. winter c.summer d.spring