Each cell is surrounded by a that seperates the interior of the cell from its surroundings

Ahypothesis that has been tested again and again , with similar results each time may become a law , 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.

Injuries in the environment are a result of