(Q).
Q: The outer surface of the heart changes from positive to negative during what? Choices: - inflammation - permeability - reproduction - depolarization A:
(A).
depolarization

(Q).
Q: Sugars, starches, and cellulose are examples of what biochemical compounds that organisms use for energy? Choices: - calories - prokaryotes - proteins - carbohydrates A:
(A).
carbohydrates

(Q).
Q: What is the opposite of melting? Choices: - evaporation - liquidation - compression - freezing A:
(A).
freezing