<span>The only traits that can be acted upon by natural selection are those that are controlled by ___________________</span>
Answer:
B. Living things
Explanation:
cells are the basic unit of life and function
Mechanical digestions is usually associated with the mouth. You mechanically chew the food and saliva breaks it down. Chemical digestion occurs in the stomach where stomach acid breaks it down.
Observable traits- phenotype
the second one is recessive. good luck!
