The answer is true fighting off the other viruses
The first step of chemical digestion starts in the mouth. Saliva, the fluid released by the salivary glands in the mouth, contains an enzyme that breakdowns food starch and turns it into simple sugars. This enzyme is called amylase or also known as alpha-amylase or ptyalin.
Relating to development involves the specialization of CELLS by form and function, and NOT the entire organism?
differentiation, morphogenesis or growth?
I think the answer is differentiation.
I would say the answer is D. because it is one graduating class, males prefer science and the females prefer language arts.