Answer:
The cell membrane is selectively permeable and able to regulate what enters and exits the cell, thus facilitating the transport of materials needed for survival. ...
Explanation:
Because the membrane acts as a barrier for certain molecules and ions, they can occur in different concentrations on the two sides of the membrane.
D. Yellow peas if it does not also have a dominant allele for green peas
By tar, I think you mean nicotine. (I Hope). It affects the nerve signals that regulate breathing.
If you are asking a true/false question then the answer is true.
