The best surface to run on is one that's
a. as hard as possible so that it adds more stability to your foot.
b. hilly so that you can improve your cardiovascular endurance.
c. smooth and soft so that it can cushion the stresses of running.
d. uneven so that the tendons and ligaments in the ankles and knees are strengthened.

Gregor mendel is best known for his work with pea plants and for uncover many of the mysteries of genetics. one of his major findings stated that there were specific, physical units of inheritance that are transmitted during reproduction. what is the the name given to these units of inheritance which can be found on chromosomes? a) centromeres b) cytoplasm c) genes d) nucleotides