B. the ball is gaining kinetic energy and losing potential energy at position B
I think the correct term would be carbon dioxide. When a person removes co2 from the lungs by exhaling, the person also removes carbon dioxide from the blood. As the blood flows in the lungs, carbon dioxide would pass out from the blood and by diffusion to the alveoli. Then, by exhaling it is removed from the the lungs.
Answer:
d. polar molecule like glucose
Explanation:
The lipid bilayer of cells are composed basically by lipids and some other proteins. These proteins can act as carries to get in or get out from the cell some substances. Since the lipids are non polar substances, the non polar molecules can travel easily because they are similar substances, in the case of the polar substances they need some carriers and in the case that they don`t enter by a carrier, so the nature of the molecule is not so soluble in the lipid bilayer, in this way will cross at a slowest rate.
The answer is b., due to DNA, it is impossible for adult skin cells to replicate into another part of the body. embryonic cells, are open to form into its surrounding tissue because it lacks the DNA necessary to form a specific function.
