Answer:
List the features of gas exchange surfaces in animals.
1)They are moist to prevent the cells from drying and to allow gases to dissolve;
2)They have a large surface area , so that a lot of gas can diffuse across at the same time;
3)They have a high concentration gradient - maintained by the movement of air & blood.
<span>A patient is admitted with lower abdominal pain and nausea. the nurse performing the initial assessment notes that the patient's abdomen is distended and firm, and hypoactive bowel sounds are present. the patient has not had a stool for 3 days. the nurse will contact the provider, who will most likely perform diagnostic tests.</span>
Answer:
Atomic number: 13
Electron Configuration:[NE] 3s²3p¹
Valence electron: 3
The answer is <span>C. DNA controls the production of protein in the cell.
DNA is made up of nucleotides. The sequences of nucleotides carry information for the protein synthesis. DNA is stored inside the nucleus, one of the organelles present in all eukaryotic cells.</span>
It is because of the different neurotransmitters and their receptors.
Sympathetic stimulation of arterioles in skeletal muscle is mediated by epinephrine acting on its β-adrenergic receptors.
Sympathetic stimulation of vasoconstriction occurs as a result of activation of α-1 adrenergic receptors by norepinephrine released by post-ganglionic sympathetic neurons.
