The process by which an individual changes over time is evolution. 1 point true or false

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.

Pulmonary arteries carry highly oxygenated blood. true or false?

What best describes emerging scientific ideas