*Question*
Q: When do cells acquire different identities in an ordered spatial arrangement? Choices: - during mitosis - larval stage - before morphogenesis - during morphogenesis A:
**Answer**
during morphogenesis

*Question*
Q: What are broad explanations that are widely accepted as true? Choices: - scientific experiments - informal theories - scientific hypotheses - scientific theories A:
**Answer**
scientific theories

*Question*
Q: Compounds that form from two or more nonmetallic elements are called what? Choices: - ionic bonds - valent bonds - hydrogen bonds - covalent bonds A:
**Answer**
covalent bonds

*Question*
Q: In alcoholic fermentation , which acid changes to alcohol and carbon dioxide? Choices: - rain - chloride - lipoic - pyruvic A:
**Answer**
pyruvic