Q: The two complementary strands of what are separated, much like unzipping a zipper, in the initiation phase? Choices: - mRNA - Chromosomes - RNA - dna A:
dna

(Question)
Q: The main organs of the cardiovascular system are the blood vessels and what else? Choices: - alveoli - capillaries - lung - heart A:
(Answer)
heart

Ques: Q: What is another environmental benefit of conserving resources? Choices: - more jobs - warmer temperatures - lower prices - less trash A:
Ans: less trash

(Q).
Q: What is the process in which a solid changes directly to a gas called? Choices: - condensation - solidification - vaporization - sublimation A:
(A).
sublimation

Ques:Q: What is used to classify tornadoes? Choices: - seismograph - damage, snowfall - humidity, rain - wind speed, damage A:

Ans:wind speed, damage

Q: Reproduction that doesn't involve a male gamete is also known as what? Choices: - meiosis - mitosis - asexual reproduction - agamogenesis A:
agamogenesis