Since the other answer got deleted, i'll just answer it for you.
a sinoatrial node is the main pacemaker that begins each heartbeat located in the junctions of superior vena cava and the right atrium. It signals from the node that spread through the atria and determines the heart rates.
I think you forgot to give the options along with the question. I am answering the question based on my research and knowledge. "The role of creativity in scientific discovery" best <span>illustrated by Watson and Crick's ball-and-stick model of DNA. I hope that this is the answer that has actually come to your help.</span>
Answer:
Metabolism!!
Not to mention pretty much the entire digestive tract and nervous system.
Explanation:
Answer:
A. Glucose leaves the cell through the GLUT-1 uniporter, traveling down the new concentration gradient.
Explanation:
The Glucose transporter 1 (GLUT1) protein is a critical uniporter transporter that facilitates the movement of glucose molecules across the plasma membrane. The expression of GLUT1 is increased when glucose concentration is reduced and, inversely, GLUT1 expression is reduced when glucose levels are increased. The erythrocytes are cells that continuously require the supply of glucose from the blood plasma, this mechanism involves the function of GLUT1 that permits the energy-free passage of glucose by diffusion.
The answer is A. The vacuole is like the storage space for the cell and it stores extra food and substances that the cell doesn't need at that moment.
