(Question)
Q: Gram-positive and gram-negative bacteria are distinguished by thickness of what? Choices: - cell membrane - cell weight - cell length - cell wall A:
(Answer)
cell wall

(Question)
Q: Pure constructive interference and pure destructive interference are distinguished by whether or not identical waves are what? Choices: - before phase - in equilibrium - after phase - in phase A:
(Answer)
in phase

(Question)
Q: Some consumers such as the mushroom get their energy from what? Choices: - inorganic matter - solar energy - minerals - dead organic matter A:
(Answer)
dead organic matter