If you have two groups of rats in two different rat cages, one cage that is like “Disneyland” and one cage that is deprived of any stimulation, what group of rats will have a bigger brain?

How do chloroplasts set plants apart from other living things

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.

In which of the following relationships is one organism always benefited while the other organism is always harmed