Answer the following question given this paragraph: The Krebs cycle is the second stage of cellular respiration. Q: What cycle is the second stage of cellular respiration? Choices: - electron transport chain - sodium potassium pump - glycolysis - krebs cycle A:
krebs cycle
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Answer the following question given this paragraph: A machine is any device that makes work easier by changing a force. When you use a machine, you apply force to the machine. This force is called the input force. The machine, in turn, applies force to an object. This force is called the output force. Recall that work equals force multiplied by distance:. Q: A machine is any device that makes work easier by doing what? Choices: - moving things - changing molecules - removing barriers - changing a force A:
changing a force
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Answer the following question given this paragraph: After birds lay their eggs, they generally keep the eggs warm with their body heat while the embryos inside continue to develop. This is called incubation, or brooding. In most species, parents stay together for at least the length of the breeding season. In some species, they stay together for life. By staying together, the males as well as females can incubate the eggs and later care for the hatchlings. Birds are the only nonhuman vertebrates with this level of male parental involvement. Q: What is another word for brooding- keeping eggs warm while the embryos develop? Choices: - spawning - fertilization - hibernation - incubation A:
incubation
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Answer the following question given this paragraph: Q: During diastole, what happens to the elastic walls of the arteries? Choices: - they expand - they become hardened - they evolve - they snap back A:
they snap back
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