Which of the following is a characteristic feature of a carrier protein in a plasma membrane? a. it is a peripheral membrane protein. b. it exhibits a specificity for a particular type of molecule. c. it requires the expenditure of cellular energy to function. d. it works against diffusion. e. it has few, if any, hydrophobic amino acids.

What role does differential reproduction play in natural selection? ! a) some organisms have different reproductive success due to nongenetic traits. b) some organisms have traits that them reach reproductive age. c) different methods of reproduction result in some organisms being genetically altered. d) reproduction varies among organisms due to pathogenic factors. the answer is not a or d based on other posts.

List charasteristics of athenosphere

The smallest parts of these that retain their original properties are called