The biosphere maintains or creates the right conditions of required for life processes to occur.

The diagram illustrates the activity of vesicles during a cellular process.

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.

What is the average speed of a car that traveled 300.0 miles in 5.5 hours