What? the two terms are??
Other molecules such as proteins, starch and sugar are simply too large to diffuse across the membrane. Sometimes, some of these large molecules are transported across the cell membranes by carrier proteins; this does not require energy and as a result is a form of passive transpor
Perception of pitch and sound intensity is the cocklear
B) Crossing over is the correct answer to the question
The answer is stem cells. Normal stem cells and germ cells can also be said to be immortal
