Aerobic Respiration takes place in the . A. molecules
B. mitochondrion
C. stomata

B

Explanation:

The structure of the mitochondrion is key to the process of aerobic (in the presence of oxygen) cellular respiration, especially the Krebs cycle and electron transport.

the three components of a nucleotide are the nitrogenous base, the phosphate group and the five-carbon sugar.

the answer is lactic acid from anaerobic respiration. the acid in lactic acid is what creates sore and burning muscles. if you think about how acid burns that will give you a clue for questions like this.