The heart is an example of which level of organization within an organism? a. cell b. organ c. tissue d. organ system : )

According to the loco mass the mass of reactants and products

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.

Nucleic acid certain protein cell membranes certain carbohydrates