Which of the biomes has the broadest set of characteristics

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.

What percentage of light hits earth's surface directly?

Pulmonary arteries carry highly oxygenated blood. true or false?