Which group consists entirely of organic molecules?
1) protein, oxygen, fat
2)protein, starch, fat
3)water, carbon dioxide, oxygen
4)water, starch, protein

What is one function of the embedded proteins

Which statement describes compounds a. compounds are made of one type of atom. b. compounds cannot be represented by models. c. compounds are represented by chemical formulas. d. compounds cannot be broken down into simpler forms.

Natural selection changes allele frequencies because some survive and reproduce more successfully than others.