Semipermeable means something can be penetrated by a few things. that being said choices A and B can be eliminated.
Choice D would negate semi as it says all polar molecules, leaving choice C as the best answer
Answer:
from where. can you PLZ put up the diagram or graph
The major organ of the circulatory system that causes blood to flow through the body by its pumping action is the heart.
The cells of the CNS are called neurons. They secrete neurotransmitters.
The sliding filament theory of muscle contraction was developed to fit the differences observed in the named bands on the sarcomere at different degrees of muscle contraction and relaxation. The mechanism of contraction is the binding of myosin to actin, forming cross-bridges that generate filament movement.
