Answer:
A vulture attacks weak prey. They hunt by sight, so they often "watch over" the prey until it is ready, by their standards. ... Sometimes vultures wait for a larger feeder to attack the meat first, so that the meat is perfect for eating.
Answer:
3D-printed blood vessels incorporating living cells may help take vascular disease out of circulation for good.
Blood clots and fatty plaque residues on vessel walls can hinder or block blood flow and increase pressure in the vascular system. That deprives tissues and organs throughout the body of oxygen and nutrients their cells need to survive. Over time, a patient’s risk increases for cardiac emergencies like heart attack and stroke, as well as for chronic debilitating complications like leg pain, organ failure, tissue death, and gangrene.
Explanation:
<span>When breeding season arrives, male elephant seals define and defend territories. They collect a harem of 40 to 50 females, which are much smaller than their enormous mates. </span>
