How could the urey-miller experiment be changed to accurately reflect our knowledge of the conditions of early earth?
a. add carbohydrate molecules to the water
b. add bacteria to the amino acids
c. add oxygen to the mix of gasses
d. add ultraviolet radiation to the electric current
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Below, the levels of organization in a multicellular organism are shown from least to most complex. which level of organization can be described as several different types of tissues working together to perform a common task?
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Factors that can increase mutation rates a. high temps b. low temps c. food additives d. uv rays
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Which is an important function of normal flora? a. aid with bone marrow production. b. crowd out pathogenic bacteria. c. destroy digestive track pathogens. d. manufacture iron in the bloodstream.
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The arrows indicate the direction of wind flow. which place experiences monsoons?
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