The correct answer is H+.
<span>Secretion from the peritubular capillary network into the convoluted tubules is a process called tubular secretion. This is an important process for both waste removal and acid-base balance. The secretion step is usually used to remove drugs, toxins, and poisons, or other molecules such as potassium (K+) and hydrogen (H+). The secreted molecules come from the peritubular capillaries and pass through the interstitial fluid before going through the wall of the tubule into the lumen of the tubule.</span>
The root word of Unicellular already tells you the answer. Uni means only one cell. So the answer is one cell.
The lack of iron makes them crave ice.
Explanation:
Please post a picture of the question, since there is no way to match anything without more information. :)
Based on the facts presented about the moon, the statement that supports the idea that what we always see is the same side of the moon is statement 1. The moon rotates on its axis for about four weeks or one month.and this happens about the same period that it orbits the Earth.