Biology, 20.09.2020 19:01 hunndo9248
Select the correct answer. Sarah performs an experiment to determine the effect of nitrogen on plants. She studies the effect of nitrogen on the growth of the root hair, height of the plants, and nodule formation. Which factor is an independent variable? A. amount of nitrogen B. growth of root hair C. nodule formation D. height of the plants
Answers: 2
Biology, 21.06.2019 23:00
Adigestive system that is a series of tubes beginning at the mouth and ending at the anus is a digestive system.
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Biology, 22.06.2019 15:30
The big bang theory suggest that the universe is about - 300 million years old - 4.6 billion years old - 30 billion years old - 13 billion years old
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Biology, 22.06.2019 17:00
In response to framton's dialogue about his health issues, mr. sappleton replies: "no? " said mr. sappleton, in a voice which only replaced a yawn at the last moment. then she suddenly brightened into alert not to what framton was saying. what does this statement reveal about how mrs. sappleton feels about framton? a) she finds him boring. b) she's happy he came by. c) she finds him annoying. d) she feels sorry for him
Answers: 1
Select the correct answer. Sarah performs an experiment to determine the effect of nitrogen on plant...
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