Answer:
Explanation:
1) Excitation brings about contraction.
2) Contraction leads to an increase in blood pressure.
3) Changes in blood pressure results in the opening and closing of the heart valves.
4) The opening and closing of heart valves then regulates the flow of blood and it's volume.
Its B
Hope this helps BOI!!!
Carrier and channel proteins in the plasma membrane
are similar because they are both transport membrane proteins that allow
molecules to flow in and out of the membrane. Meanwhile, carrier protein can
further be classify as active or passive transport. These two transport
proteins makes cell’s ability to perform their functions well by maintaining a
difference between the intracellular and extracellular environment.
Answer:
Antibiotics are strong medicines that treat bacterial infections. Antibiotics won't treat viral infections because they can't kill viruses.
Explanation:
You'll get better when the viral infection has run its course. Common illnesses caused by bacteria are urinary tract infections, strep throat, and some pneumonia.
