Answer:
its the measure of your body's ability to take oxygen from the atmosphere and use it to produce energy for your muscle cells.
Explanation:

B.Mood-altering chemicals derived from plants.
please correct my answer if its wrong
<span>The answer is letter D.<span>
<span>The third
trimester occurs on the 9th month of pregnancy. This means that the mother is
weeks away from the delivery. It is the time when mothers experience extra pressure on their
backs, their breasts start to enlarge, and the possible breaking of the
placenta that contains the baby. It is actually the home-stretch to a pregnancy
and is one of the most complicated parts of being a mother where pain and uneasiness
are extremely felt by a child-bearing mother. </span></span></span>
D. Eat lots of fresh shellfish. This is how a person with lactose intolerance can obtain dietary calcium.