Why is geothermal energy considered a renewable resource?
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a. it produce more biomass for later use.
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b. using the energy does not deplete the energy source.
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c. geothermal energy can also be used for nuclear energy.
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d. it is a result of solar energy coming from the sun.

Which statement best describes the relationship between an allele and a gene? question 1 a. an allele is a variation of a gene that can be expressed as a phenotype. b. an allele is the part of a gene that attaches to messenger rna molecules. c. an allele is a segment of a dna molecule that controls replication of a gene.