Q: The volume of blood each ventricle pumps per minute is called what? Read this paragraph and choose the correct option from the provided answers: Choices: - trauma output - blood output - brain output - cardiac output A:
cardiac output
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Q: What type of reactions form compounds? Read this paragraph and choose the correct option from the provided answers: A compound is a unique substance that forms when two or more elements combine chemically. Compounds form as a result of chemical reactions. The elements in compounds are held together by chemical bonds. A chemical bond is a force of attraction between atoms or ions that share or transfer valence electrons. For a video introduction to compounds, go to this URL: http://www. youtube. com/watch?v=-HjMoTthEZ0 . Choices: - mineral reactions - consumption reactions - physical reactions - chemical reactions A:
chemical reactions
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Q: What is only effective if ventilation is matched to blood flow through alveolar capillaries? Read this paragraph and choose the correct option from the provided answers: Choices: - iron lung - blood pressur control - assisted breathing - breathing control A:
breathing control
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Q: More uv rays reach the ground due to a decrease in what layer in the stratosphere? Read this paragraph and choose the correct option from the provided answers: With less ozone in the stratosphere, more UV rays reach the ground. More UV rays increase skin cancer rates. Just a 1 percent loss of ozone causes a 5 percent increase in skin cancer. More UV rays also harm plants and phytoplankton. As a result, they produce less food. This may affect entire ecosystems. Choices: - troposphere - smog - gases - ozone A:
ozone
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