How do light reactions help the Calvin cycle
A. They break down macromolecules
B. They provide photons
C. They create hydrogen ions
D. They provide energy carriers

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

How does buring fossil fuels impact does carbon cycle? what large impact does this have on the envirnment?

Which of the following types of rock would most likely contain a fossil? slate granite lava rock limestone