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
Biology, 22.06.2019 01:20, byrdfarm
And give a detailed description! scientist observes the boundary between two tectonic plates for a decade and finds that no new volcanoes have formed over the course of her investigation. does this result support the theory of plate tectonics? why or why not?
Answers: 3
Biology, 22.06.2019 11:00, ayoismeisalex
Which of these is true of the cytoplasm of an unfertilized egg? a. it is an unevenly distributed mixture of mrna, proteins, organelles, and other substances. b. it does not contain substances that are important in directing development. c. these substances are supplied by the sperm. d. it does not contain substances that are important in directing development. e. development is directed solely by the surrounding cells. f. it is a homogeneous mixture of mrna, proteins, organelles, and other substances. g. it does not contain substances that are important in directing development. h. these substances are produced by the dna of the fertilized zygote.
Answers: 1
Biology, 22.06.2019 15:20, Ciarrathereal
Which is a kingdom? protistachordataprokarya mammalia
Answers: 2
Ascientist was studying the effects of oil contamination on ocean seaweed. he believed that oil runo...
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