Q: What do you call the electrons in the outer energy level of an atom that are involved in chemical bonds? Choices: - force electrons - helium electrons - transitions electrons - valence electrons A:
valence electrons

(Question)
Q: Sympathetic stimulation also triggers the release of epinephrine and norepinephrine, which enhance both cardiac output and what else? Choices: - vasodilation - inhibition - digestion - vasoconstriction A:
(Answer)
vasoconstriction

Ques: Q: What is used as a vector for gene insertion in ex vivo gene therapy? Choices: - typhus - penicillin - bacteria - virus A:
Ans: virus

(Q).
Q: Does air temperature increase or decrease as it rises higher in the atmosphere? Choices: - both - increase - neither - decrease A:
(A).
decrease

Ques:Q: In places like the grand canyon, hard rocks that are resistant to weathering form what, while softer rocks that weather more easily form slopes? Choices: - valleys - peaks - crevasses - cliffs A:

Ans:cliffs

Q: What cage composed of 12 pairs of ribs, with their costal cartilages and the sternum, protects the heart and lungs? Choices: - sacral - lumbar - cervical - thoracic A:
thoracic