A student sets up the experiment shown in the diagram to the right to investigate how friction affects the motion of a toy car. 29. The student releases the car down the ramp and measures how far the car travels. Which variable must the student change to test how friction affects the motion of the car? (S8P3b)

thanks for the points heyy

Explanation:

gametes or germ cells are haploid cells (example: sperm and ova) containing only one set (or n) number of chromosomes and autosomal or somatic cells are diploid cells containing 2n number of chromosomes.

•there must be variation for the particular trait within a population.

•the variation must be inheritable (that is, it must be capable of being passed on from the parents to their offspring).

•individuals with one version of the trait must produce more offspring than those with a different version of the trait.good

explanation: