Which of the following is not a compound?
A) table salt (sodium chloride)
B) carbon
C) water
D) methane
E) glucose
Answer: B) carbon
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Use the following study to answer the following question(s): A researcher applies varying amounts of fertilizer (0, 2, 4, 8, 10 units) to 50 potted tomato plants. All other variables that may affect the outcome (watering, temperature, sunlight, plant size, etc.) are kept the same from pot to pot. At the end of the growing season, the tomatoes grown on each plant are weighed to determine which fertilizer level produced the largest tomato yield.Is the study presented above a controlled experiment?
A. Yes, because many pots were used. B. No, because the experiment was done only once. C. No, because several different amounts of fertilizers were used, not just one amount. D. Yes, because only the amount of fertilizer was changed, everything else was kept the same.
Triglycerides are composed of three carboxylic acid chains bound to a glycerol.
a. true b. false
What process is at work when two species evolve in unique directions from a common point?
What will be an ideal response?
The diagnostic procedure that images the structures of the blood vessels and the flow of blood through these vessels is known as _________ .
Fill in the blank(s) with the appropriate word(s).