Biology

Biology, 10.09.2019 01:30, blakeboy3148

Fertilizer in soil increases flower production. what are two controlled variables?

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Biology, 22.07.2019 13:30, lol9691

Scientists are studying fertilizers to grass grow in southern california. fertilizer is any substance that can be added to soil to plants grow in it. in other words, fertilizer makes soil more fertile. the scientists set up different plots of land that all use the same type of soil, but they use different types of fertilizer in each plot. scientists then measure the grass growth in the different soils over time.how should scientists set up the control group in this experiment? a. a plot with grass but no fertilizer in the soil b. a plot with grass and many types of fertilizer in the soil c. a plot without any grass or any fertilizer in the soil d. a plot without any grass but with fertilizer in the soil

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Biology, 27.08.2019 00:30, kittykat5105

Plant 1 200 ml of water 100 g of soil fertilizer a plant 2 200 ml of water 100 g of soil fertilizer b plant 3 200 ml of water 100 g of soil fertilizer c plant 4 200 ml of water 100 g of soil no fertilizer you decide that a good time period for the experiment will be a 7 days. you will be measuring the height of the plant everyday. you data for the 7 days are as follows. plant plant 2 plant 3 plant 4 1 mm imm imm 1 mm monday tuesday 1.2 mm 1.3 mm 1.1 mm 1 mm wednesday 2.1 mm 2.2 mm 1.6 mm 1.2 mm thursday 2.6 mm 2.8 mm 1.7 mm 1.5 mm friday 3.1 mm 3.8 mm 2.0 mm 1.8 mm saturday 3.3 mm 4.0 mm 2.6 mm 2.3 mm sunday 3.4 mm 4.4 mm 2.8 mm 2.5 mm 13. your hypothesis for this experiment can be seen in the sentence that says. a. your tomatoes are usually the talk of the town. b. is the fertilizer doing the job? c. you believe that your fertilizer is not doing the job. d. you predict that fertilizer b will be the best fertilizer because it contains many more different minerals then fertilizer cor a.

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Social Studies, 21.09.2019 21:30, sharonsmailbagot6uas

Astudent wonders, “does the moisture content in soil affect how far a worm can dig? ” identify the variables that are being considered in this experiment and the variables that need to be controlled. independent dependent controlled

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Biology, 19.10.2019 08:30, treavonknorton

Astudent wonders if adding fertilizer to the soil will make tulips grow faster. the student’s hypothesis states, “if fertilizer is added to the soil, then the tulips will grow faster, because fertilizer adds nutrients to the soil.” which of the following variables is the independent variable?

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