Q: In the mouth, enzymes present in what begin to chemically break down food? Choices: - blood - acid - lymph - saliva A:
saliva

(Question)
Q: If an abnormal cell is not prevented from dividing and it divides uncontrollably, what forms? Choices: - cyst - inflammation - edema - tumor A:
(Answer)
tumor

Ques: Q: What is the name for a specific amount of solute that can dissolve in a given amount of solvent? Choices: - humidity - viscosity - concentration - solubility A:
Ans: solubility

(Q).
Q: Humans have about 20,000 to 22,000 genes scattered among 23 of these? Choices: - neutrons - ribosomes - atoms - chromosomes A:
(A).
chromosomes

Ques:Q: What are biochemical compounds that living things use to store energy and make cell membranes? Choices: - carbohydrates - proteins - nucleic acid - lipids A:

Ans:lipids

Q: What happens if a person doesn't take in enough water to replace the water lost in sweat? Choices: - diarrhea - fatigue - relaxation - dehydration A:
dehydration