C
Hot springs are heated by the geothermal heat- heat from the Earths interior.
Answer: a line connecting her mother and father, a colored circle representing Jenna, and two empty circles representing her sisters
Explanation: Jenna's red hair can be determined by incomplete dominance.
Incomplete dominance is a condition where neither of the alleles responsible for a trait is dominant.
In incomplete dominance, one allele for a specific trait is not completely expressed over its paired allele. So, if an organism is heterozygous for a trait, it shows a third phenotype.
Explanation:
I'm not an expert or sum, but with using logic I would choose: DNA plays a role in the growth and reproduction of organisms, DNA guides the formation of an organism's structures.