I believe that oxygen and silicon are the most common elements found in the Earth's crust.
Answer:
x- axis
Explanation:
x- axis is left to right, the run
y- axis is up to down, the rise
<span>Blood flow to the skin increases when the
temperature of the body rises. When you are too hot, the blood vessels in your
skin expand (dilate) to carry the excess heat to your skin's surface. It helps
cool your body. </span>
Answer:
Letter B.
Explanation:
Aquaporins, also known as "water channels," are the main transport of water through the membranes of plant, animal, and bacterial cells. These channels allow the water to travel into and within cells and, at the same time, exclude the passage of ions and solutes.
What makes letter B the correct answer, is the form of transport and shape of the channel that allow water according to the osmotic gradient. In this model, letter A shows simple diffusion, while C and D seem to illustrate gated channels.