Can anyone help me with this assignment?

What do scientists need to look at before developing an argument

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.

Explain why biological control methods are generally environmentally superior to chemical pest control methods.