Biology, 23.10.2020 21:40, Royalty0703
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Watch this video about the stresses on the body caused by carrying heavy backpacks. Then design an
investigation about the effect of carrying backpacks on students' health using these steps of the scientific method:
• make observations or inferences
• ask questions
• construct hypotheses and make predictions
• test hypotheses
• analyze results
Your investigation can address any question you have about backpacks and student's health that you choose.
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Biology, 22.06.2019 00:40, Loganstilson9847
Which would best keep the oxygen cycle stable? a. cutting down jungles to create farmland b. eliminating parks in large cities c. dumping toxic chemicals into the ocean d. reducing the amount of deforestation d. reducing the amount of deforestation
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Biology, 22.06.2019 04:20, kelseypichla
Explain the significance of the increased cell specialization of the volvocine line
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Biology, 22.06.2019 06:20, cherylmorton7302
All organisms contribute some water to the water cycle by conducting
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Watch this video about the stresses on the body caused by carrying h...
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