Biology, 18.12.2019 23:31 122333444469
Ascientist was studying the effects of oil contamination on ocean seaweed. he believed that oil runoff from storm drains would keep seaweed from growing normally. he had two large aquarium tanks of equal size. he kept the amount of dissolved oxygen and the water temperature the same in each tank. he added some motor oil to one tank but not to the other. he then measured the growth of seaweed plants in each tank. in the tank with no oil, the average growth was 2.57cm/day. the average growth of the seaweed in the tank with oil was 2.37cm/day. based on this experiment, answer the following questions:
what was the question that the scientist started with?
what was his hypothesis?
identify the independent variable.
identify the dependent variable.
identify the control(s).
what did the data show
Answers: 1
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Drag the tiles to the correct boxes to complete the pairs. match the nitrogenous base of dna with its complement.
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Ascientist is designing an investigation to study the impact of invasive bird populations on local, native bird populations at backyard bird feeders. what population is most likely to be a control group for the investigation? amount of food number of bird feeders invasive bird populations local backyard birdfeeders without food
Answers: 1
Ascientist was studying the effects of oil contamination on ocean seaweed. he believed that oil runo...
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