Q: Saltwater is a homogeneous mixture, another term for what? Choices: - structure - element - lipid - solution A:
solution

(Question)
Q: What do neurons pass to the next neuron? Choices: - contaminants - blood - receptors - neurotransmitters A:
(Answer)
neurotransmitters

Ques: Q: When the number of active receptors falls below that threshold, what happens to the cellular response? Choices: - it responds - it increases - it stabilizes - it ceases A:
Ans: it ceases

(Q).
Q: When matter reacts, there can be what that comes from nowhere and is unaccounted for? Choices: - concentrations - combustions - bonds - mass A:
(A).
mass

Ques:Q: During strenuous exercise our muscles perform what kind of fermentation? Choices: - nitric acid - residual acid - excessive acid - lactic acid A:

Ans:lactic acid

Question: Q: Scientists use the principles of what to make predictions, which they then test? Choices: - their teachers - their guesses - their faith - their hypothesis A:
Answer:
their hypothesis