All sources of pollution come from human activities.

How did the research presented in the article affect scientists' understanding of the evolution of eukaryotes

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.

One gene can influence trait(s). one trait can be determined by gene(s).