It hangs around in caves in South America, venturing out at night to land on unsuspecting vertebrates. It swoops down onto a sleeping cow or horse or pig, makes an incision with its razor-sharp teeth, and as the blood oozes out, it quickly slurps it up. You wouldn't take your time over dinner, either, if your dinner might wake up any minute. In order to decrease its weight, it urinates as it eats, even before it has digested its meal, in that way getting rid of the fluid it has imbibed, while retaining the protein-rich cells. A. Vampire bats have heat sensors in their nose.
Blood is warmed as it passes by the heat-generating tissues in the body's core.
Thus an increase in temperature indicates an area where more blood is present, due to a higher density of capillaries, or due to vasodilation, or it indicates an area where blood vessels are closer to the body's surface. Your answer should include an explanation of what Factor X is, the pathway in which it works, and why the bat would want to inhibit it. 2 Inhibition of X means that no fibrin clot will form, which allows blood to flow instead of clotting, allowing the bat the needed time to finish feeding. Compared to a human, the vampire bat has a very small small intestine, virtually no large intestine, and a proportionally larger stomach. The stomach is shaped like a blind sac, which fills with ingested blood.