Which of the following describes all animals? a. all animals have back bones. 2. all animals are multicultural. 3. all animals control their own body temperature. 4. all animals are vertrbrates.

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.

How are mutations continually being generated in a population (what are some of the causes of mutatuions? ) explain

All individuals have two alleles for a given trait. according to mendel's these alleles are passed down one each from both mother and father.