Cellular respiration is important to a person’s body, especially during periods of exercise. When person exercises, the process of cellular respiration increases the amount of what product in your body? A. oxygen
B. oxygen and water
C. energy in the form of ATP
D. energy in the form of glucose

c.) polymerase chain reaction

- "unlike the original dna fingerprinting method, dna profiling does not use restriction enzymes to cut the dna. instead it uses the polymerase chain reaction (pcr)? to produce many copies of specific str sequences. pcr is an automated procedure that generates lots of copies of a specific sequence of dna."

lizards have adapted to life in the desert. some desert lizards have toes with spiny scales to them run across the sand without sinking. some use the sand to hide from predators, or to search for small animals that they prey upon.