Biology, 16.12.2019 23:31, samsavage4073
Astudent wants to answer the question “does adding calcium powder to soil make pea plants grow faster? ”? she adds calcium powder to the soil of 12 plants and does not add it to the soil of a second group of 12 plants. she measures the growth of all of the plants in each group for a month. which statement best summarizes the factors that need to be controlled in this experiment? a. all plants should be the same age and health and be given equal amounts of water and sunlight. b. all plants should be placed in separate, equal-sized pots on the same table, where they receive the same amount of sunlight. c. all plants should be watered in the morning at the same time each day, and given the same amount of soil and sunlight. d. all plants should be the same health and be given equal amounts of water, calcium, and sunlight.
Answers: 2
Biology, 21.06.2019 23:00, makenziehook8
Rue or false siblings look simila rbecause they each have some traits of their parents.
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Biology, 22.06.2019 19:10, rosenatalie222
Which statement does lola need to correct, and why? a) statement 1 because spiral galaxies do not havearmsb) statement 2 because the bulges contain mostlyyoung red stars. c) statement 3 because the arms are made of mostlyyoung blue and blue-white stars. d) statement 4 because spirals galaxies contain littleto no dust.(c)
Answers: 1
Astudent wants to answer the question “does adding calcium powder to soil make pea plants grow faste...
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