Extinction
a. only happens above the species level
b. cannot happen to more than one sp...
Biology, 10.10.2019 22:50 danbat3023
Extinction
a. only happens above the species level
b. cannot happen to more than one species at a time
c. has happened to over 99% of species that ever lived on earth
d. happens when a species or population dies out
Answers: 3
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Evolution acts upon the population of organisms and not on each individual organism
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Molecules like glucose and amino acids are not lipid soluble, so cannot cross the cell membrane by simple diffusion. instead, they are shuttled across by carrier proteins in the membrane from high to low concentration. does this process require energy from the cell? this is an example of what type of molecular movement?
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