You're answer is A because when you think about it these creatures lived before any of the other creatures on your list
Five awesome vessels enter and leave the heart: the unrivaled and second rate vena cava, the aspiratory corridor, the pneumonic vein, and the aorta. The prevalent vena cava and mediocre vena cava are veins that arrival deoxygenated blood from dissemination in the body and purge it into the correct chamber.
Answer:
the correct answer is : Cultured organs can be kept alive for several weeks before transplant.
Explanation:
organ outside the body does not behaves in the same way as they do inside the body. these organs can be kept alive only when they are put into a culture solution, which can increase the shelf life of the organs by few weeks. it also reduces the chance of organ rejection. cultured organs can be kept alive for several weeks before transplant.
Answer:
PCR=Polymerase chain reaction
Explanation:
I think it's C. Because hibernation is usually for animals living in Continental climates. I basically just eliminated the other answers until I got that one. One example for animals living in cold climates burrowing are Arctic Foxes.
