Bleeding from artery is more dangerous than that from vein, why?​

Due to the high pressure arteries hold and it is difficult to control.

Explanation:

Consider most of the arteries (minus the pulmonary arteries) have a thicker layer (lumen) that basically  resists the ejection of blood from the heart. Arteries hold oxygenated blood to the vital organs (the heart itself throught he coronary arteries, the brain that needs EXCLUSIVE oxygenated blood, and lungs). Contrasted to a bleeding vein, bleeding from an artery tends to go faster, which increases the risk of hemorrhage and death.

if you need an analogy, think of it with a hose:  if you take the hose and sever it after it's pumped into the hose on ground level, but the pump is still pumping the water, it will no longer be evenly distributed and spill everywhere.

hey, i believe your answer would be d. sugar ribose and the base uracil. i believe this is the answer, because rna consists of sugar ribose, adenine, guanine, cytosine, and uracil.

your first option is incorrect, because that's dna. where it consists of sugar deoxyribose, adenine, guanine, cytosine and thymine.

your second option is also incorrect, this is because sugar deoxyribose is in dna, and uracil is in rna. these two do not make sense together.

your third option being incorrect, because sugar ribose is in rna, but not the base of thymine. rna consists of uracil, not thymine.

lastly your fourth option being correct! this answer is correct, because both sugar ribose, and the base uracil are in rna! ~

answer is d. sugar ribose and the base uracil.

not sure if this what   you'r looking for would be percent composition