Two students are planning an experiment that will test how planaria (aquatic flatworms) resins to different environments. They will conduct two investigations-one that tests the worms’ responses to different water temperatures and one that tests the worms’ response to different levels of acidity. Student 1 wants to buy two groups of flatworms And use a different group for each investigation. Student to think the same group of warms
And use a different group for each investigation. Student 2 think the same group of worms should be used for both investigations.
Do you think either student’s method would give more accurate results?why or why not? Explain your response.
Answers: 3
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Label the following as inner or outer planets; a) has 67 moons made mostly of hydrogen and helium b) has rings c)no moons, high volcanic activity d) known as the red planet, has 2 moons e) very thin atmosphere, moons or rings
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Two students are planning an experiment that will test how planaria (aquatic flatworms) resins to di...
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