one pack of cigarettes can reduce a person's life by __ hours
minutes.
how many breaths do we take every minute?
a. 40-50
b. 30-40
c. 20-30
d. 10-15

How many variables are altered in a good experiment? a.1 b.0 c.2 d.3

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.

Afisherman is dragging his boat from the shore out into the ocean. match the following lists of areas he will move over in the correct order. continental rise continental slope continental shelf [tex]1.[/tex] [tex]2.[/tex] [tex]3.[/tex]