55 is the answer
!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
D (fourth one)
Explanation:
since N and S attract (opposites attract)
Explanation:The excretory system is the system of an organism's body that performs the function of excretion, the bodily process of discharging wastes. ... There are several parts of the body that are involved in this process, such as sweat glands, the liver, the lungs and the kidney system. Every human has two kidneys.
Answer:
In its simplest definition, organic compounds include all molecules that contain carbon. By this definition, simple molecules such as carbon ...
Explanation:
<span>This is an example of facilitated diffusion using a channel. Diffusion is the process of an object moving across a concentration gradient, usually from areas of higher to lower concentration in membranes. In this case, the diffusion is "facilitated" by the aquaporin molecules and water is allowed to enter or exit the membrane based on concentration level.</span>
