a pair of identical chromosomes shown in a karyotype, one inherited from mom, and one inherited from dad are called

Plzz hurry im being timed during times of vigorous physical activity, muscles require a constant supply of oxygen. how does the body respond to these needs? a. breathing rate and heart rate both decrease. b. breathing rate and heart rate both increase. c. heart rate decreases, but breathing rate remains stable. d. breathing rate increases, but heart rate remains stable.

Why was the sample heated in step 5? describe the chemical principles involved in the reasoning behind this step?

Which medullary index indicates a human hair? a. 0.653 b. 0.733 c. 0.516 d. 0.256