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A scientist is studying the effect a new fertilizer has on the root growth of bean seedlings. Three groups of plants are grown in the same location in a greenhouse, each receiving the same amount of sunlight and water every day. The scientist measures the length of the roots for each plant every day. The scientist then calculates the mean for each group for five days. The results are shown in the following table. Fertilizer Experiment Data Table A What is the independent variable in this experiment? B с Day 1 Day 2 Day 3 Day 4 Day 5 D Group 1 0 mg 3.0 cm 3.2 cm 3.4 cm 3.7 cm 4.2 cm the amount of water given to each plant the amount of fertilizer given to each plant Group 2 5 mg 2.7 cm 3.1 cm 3.7 cm 4.2 cm 4.6 cm the place in the greenhouse where each plant was placed the type of soil used for each plant Group 3 10 mg 2.9 cm 3.3 cm 3.7 cm 3.9 cm 4.1 cm

A scientist is studying the effect a new fertilizer has on the root growth of bean seedlings. Three groups of plants are grown in the same location in a greenhouse, each receiving the same amount of sunlight and water every day. The scientist measures the length of the roots for each plant every day. The scientist then calculates the mean for each group for five days. The results are shown in the following table. Fertilizer Experiment Data Table A What is the independent variable in this experiment? B с Day 1 Day 2 Day 3 Day 4 Day 5 D Group 1 0 mg 3.0 cm 3.2 cm 3.4 cm 3.7 cm 4.2 cm the amount of water given to each plant the amount of fertilizer given to each plant Group 2 5 mg 2.7 cm 3.1 cm 3.7 cm 4.2 cm 4.6 cm the place in the greenhouse where each plant was placed the type of soil used for each plant Group 3 10 mg 2.9 cm 3.3 cm 3.7 cm 3.9 cm 4.1 cm

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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A scientist is studying the effect a new fertilizer has on the root growth of bean seedlings. Three groups of plants are grown in the same location in a greenhouse, each receiving the same amount of sunlight and water every day. The scientist measures the length of the roots for each plant every day. The scientist then calculates the mean for each group for five days. The results are shown in the following table. Fertilizer Experiment Data Table A What is the independent variable in this experiment? B с Day 1 Day 2 Day 3 Day 4 Day 5 D Group 1 0 mg 3.0 cm 3.2 cm 3.4 cm 3.7 cm 4.2 cm the amount of water given to each plant the amount of fertilizer given to each plant Group 2 5 mg 2.7 cm 3.1 cm 3.7 cm 4.2 cm 4.6 cm the place in the greenhouse where each plant was placed the type of soil used for each plant Group 3 10 mg 2.9 cm 3.3 cm 3.7 cm 3.9 cm 4.1 cm
Transcribed Image Text:A scientist is studying the effect a new fertilizer has on the root growth of bean seedlings. Three groups of plants are grown in the same location in a greenhouse, each receiving the same amount of sunlight and water every day. The scientist measures the length of the roots for each plant every day. The scientist then calculates the mean for each group for five days. The results are shown in the following table. Fertilizer Experiment Data Table A What is the independent variable in this experiment? B с Day 1 Day 2 Day 3 Day 4 Day 5 D Group 1 0 mg 3.0 cm 3.2 cm 3.4 cm 3.7 cm 4.2 cm the amount of water given to each plant the amount of fertilizer given to each plant Group 2 5 mg 2.7 cm 3.1 cm 3.7 cm 4.2 cm 4.6 cm the place in the greenhouse where each plant was placed the type of soil used for each plant Group 3 10 mg 2.9 cm 3.3 cm 3.7 cm 3.9 cm 4.1 cm
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Variables in research are any characteristics that can have multiple values. In studies, researchers frequently manipulate or measure independent and dependent variables to test cause-and-effect relationships.

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