All except number 2. Hope this helps!
Answer:
white for the first one and brown for the secound one
Explanation:
Answer:
The main function of viagra is to relax the muscles of the blood vessels in some areas of the body. It is used for the treatment of erectile dysfunction and for high blood pressure. The component of viagra is a competitor to the enzyme PDE5, breaking down cGMP. In the penis, blood is trapped, which results in the erection being maintained. When cGMP levels decrease, the concentration of calcium ions increases, causing smooth muscle contraction.
Explanation:
I don't know if this is what you're looking for but...
examples of abiotic factors in a marine ecosystem could be the water, oxygen in the water which helps the animals in the water breathe, and the sun that reflects into the water.
