Q: Why do electronegativities decrease from top to bottom? Choices: - smaller atomic size - larger atomic variation - larger electric pull - larger atomic size A:
larger atomic size

Q: What is the term for when organisms need other organisms to survive? Choices: - intradependence - realization - coexistence - interdependence A:
interdependence

Q: Q: What system gets less effective with age, that generally makes older people more disease susceptible? Choices: - infectious system - reproductive system - nervous system - immune system A:
A: immune system

Question: Q: What two lenses comprise a compound microscope? Choices: - polarized and focal - scope and focus - concave and convex - objective and eyepiece A:
Answer: objective and eyepiece

*Question*
Q: What does a keratometer measure in the cornea? Choices: - diameter - Lenght - Width - curve A:
**Answer**
curve

(Q).
Q: The total energy assimilated by an ecosystem in a give period is known as what? Choices: - size primary production - median primary production - mean primary production - gross primary production A:
(A).
gross primary production