Answer:
Dependent: Reduction
Independent: Solar Energy
Controlled: B
Explanation:
The dependent variable is what is being measured in the lab.
The independent variable is what is being CHANGED by the individual
The control is what is kept the SAME throughout the lab.
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Answer: the relative differences in arrival times of the S and P seismic waves at several recording stations tell scientists about the different speeds those waves were traveling at, which in turn gives information about the density of the material the layer is made of, and how thick the layer is in several directions.
Explanation:Earth's layers
photosynthetic organisms contain light-absorbing molecules called pigments that absorb only specific wavelengths of visible light, while reflecting others. The set of wavelengths absorbed by a pigment is its absorption spectrum.
a. True.
Answer:
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Explanation:
Different cells in a multicellular organism may express very different sets of genes, even though they contain the same DNA.
