Can you guys please help ?

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.

This is an active transport mechanism by which cells pump sodium and potassium ions against the concentration gradient

When fossil fuels are burned, carbon dioxide is released. how does this gas impact the environment?