Answer:
Carbon dioxide enters the alveoli, and oxygen enters the capillaries.
Explanation:
This describes the exchange of gases in the lungs. When blood from the rest of the body gets to the lungs through the capillaries, oxygen flows from the alveoli which are tiny air sacs in the lungs, into the blood in the capillaries.
Carbon dioxide from the blood brought to the lungs will then flow into the alveoli which will then expel it through the nose. This repeated process ensures that the body keeps getting oxygen and expelling carbon dioxide.
<span>A trait that improves the fitness of its bearer, compared with individuals without the trait.</span>
During meiosis, chromosome pairs randomly line up along each side of the cell equator. This arrangement mixes up the chromosomal combinations, which
A. helps ensure reproductive success.
B. helps create and maintain genetic diversity.
C. helps maintain all of the previous generation's characteristics.
D. helps ensure an equal number of males and females in the next generation.
Answer:
I think C.............................
