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Biology, 21.06.2019 15:20, lillysiege
Sydney drew a flow chart to illustrate the nitrogen cycle. which labels best complete the flow chart? x: producers undergo photosynthesis. y: nitrogen compounds are released into the air. x: nitrogen compounds are released into the air. y: producers undergo photosynthesis. x: free nitrogen is in the atmosphere. y: producers absorb nitrogen compounds through their roots. x: producers absorb nitrogen compounds through their roots. y: free nitrogen is in the atmosphere.
Answers: 3
Biology, 21.06.2019 17:30, kayadaniels2
How can you keep track of variables in a science experiment?
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Biology, 21.06.2019 19:00, simionriley4191
One statements is an example of a scientific observation. another statement is an example of a scientific explanation. identify the correct statement for each category to illustrate how scientific explanations are inferred from scientific observations.
Answers: 3
Biology, 21.06.2019 20:20, abigailb4424
19. scientists use meteorites that hit earth to provide evidence of the composition of earth's interior because they hypothesize that
Answers: 1
Measuring Populations
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