The answer is: Cellular respiration is important because it provides the energy for living organisms to perform all of the other necessary functions to maintain life.
Probably B would be the right answer
The correct answer for the question that is being presented above is this one: "B. extra chromosome 21." Karyotypes can be studied to determine an organism’s chromosomal makeup and to detect genetic defects. Down syndrome is a genetic disorder that is also called trisomy 21. Trisomy 21 look like in a karyotype with <span>extra chromosome 21</span>
