Q: To the extent that behaviors are controlled by what, they may evolve through natural selection? Choices: - rna - dna - mutation - genes A:
genes

(Question)
Q: How are electrons shared in covalent bonds? Choices: - randomly - orderly - unequally - equally A:
(Answer)
equally

Ques: Q: What impact can plaque in an artery have on the flow of blood? Choices: - no effect - allergic reaction - increased flow - restriction A:
Ans: restriction

(Q).
Q: Sedimentary rocks form in what kind of layers? Choices: - stacked - magnetic - vertical - horizontal A:
(A).
horizontal

Ques:Q: What is a circuit that consists of one loop called? Choices: - speaking circuit - episode circuit - dramatic circuit - series circuit A:

Ans:series circuit

Ques:Q: What is one major cause of skin cancer? Choices: - visible light - sunscreen - infrared light - ultraviolet light A:

Ans:
ultraviolet light