Answer:
Carbon, Hydrogen, Oxygen, Nitrogen
amino acids?
Explanation:
I know that the first part is right I just don't understand exactly what it is asking for the second but I gave my best answer for it.
The education and training needed to pursue a career as a genetic counselor is not as rigorous as that of becoming a board-certified physician, but you should expect to spend up to six years in college: four years<span> at the undergraduate level and an additional two at the graduate level............</span>
Answer:
It develops over land and is cold and dry!
Explanation:
It's a continental air mass, so it develops over land! Maritime ones develop over water. It's cold and dry because it's a polar air mass, not tropical!
I hope that helped you!
Answer:
The mechanism by which cells regulate their ability to respond to extracellular messengers is known as receptor signalling.
Explanation:
Cells senses an environment and communicate which each other through ligand-induced activation of signalling receptors at the cell surface. Signalling receptors enter the endocytic pathway and are sorts into various compartments. Endocytosis regulates cell signalling by controlling the number of receptors available for activation in plasma membrane and activation of receptors or downstream effectors often stimulate receptor endocytosis.