Explanation:
Macromolecules are molecules of large number of atoms usually with a diameter ranging from about 100 to 10,000 angstroms.
As the race begins, all of your physiological support systems - the musculoskeletal, cardiovascular, respiratory, digestive, immune, nervous, ...
Inheritance: genetic information passed down from a parent. Trait: a characteristic of an organism that can be the result of genes and/or influenced by the environment. Traits can be physical like hair color or the shape and size of a plant leaf
Once the sperm cells are formed, the are stored in the epididymis, where they are temporarily stored while they mature.
Hope this helps :)
B I think that is the right answer
