What happens during respiratory failure? a oxygen and waste carbon dioxide are not effectively exchanged b waste is not removed from the body c the blood is not effectively pumped through the body d food is not properly digested

Food webs - transferring energy and matter from one level to another. here you see four food webs. one or more are incorrect. which food web(s) show the correct sequence of organisms, from start to top level consumer? a) a b) d c) c d) a and d

Environmental science are unconsidered with methods to preserve natural resourcesa.trueb.false

Which of the following terms best matches this definition: the process where humans choose the traits that will be present in the next generation through breeding. question 4 options: genetic determinism artificial selection acquired selection natural selection