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

Q: What is a shortage of water that causes the soil to dry from the surface down called? Choices: - overflowage - tidal wave - flood - drought A:
drought

Q: Q: What is used to darken images of the sky? Choices: - close-up filter - uv filter - neutral density filter - polarizing filters A:
A: polarizing filters

Question: Q: What do heterotrophic animals usually consume? Choices: - soil - minerals - plants - other organisms A:
Answer: other organisms

*Question*
Q: Melanocytes are located in which layer of the epidermis? Choices: - follicle - outer - crust - bottom A:
**Answer**
bottom

(Question)
Q: What kind of bond consists of one sigma bond and one pi bond? Choices: - beta bond - covalent bond - ionic bond - double bond A:
(Answer)
double bond