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Home Q & A Board Biology-Related Homework Help Environmental and Conservation Biology
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melaa melaa
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6 years ago
An ecologist conducts a greenhouse experiment to study the effect of nitrogen concentration on the productivity of sunflower seedlings. What is the independent variable in this experiment?
A) productivity of sunflowers
B) concentration of nitrogen
C) the number of sunflower seeds planted
D) the daily amount of water given to each sunflower seed
Textbook 
Elements of Ecology

Elements of Ecology


Edition: 9th
Author:
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By_NeFReTBy_NeFReT
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6 years ago
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melaa Author
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6 years ago
Brilliant ツ
bbbbbbbh
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Yesterday
Helped a lot
loki1345
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2 hours ago
Thanks for your help!!
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