Which type of receptor binds to ligands that cannot enter the cell? a. surface / membrane
b. intracellular
c. functional
d. cytoplasmic

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How many years would it take the atlantic ocean to grow 500 centimeters? show your work.

Why does meiosis produce cells with half the chromosomes? o a. most of the chromosomes are not necessary to keep an organism alive. b. a gamete needs only half the number of chromosomes because two gametes join together. o c. it makes the gametes easier to move around in the organism. o d. it is faster to produce gametes with fewer chromosomes.