The actively dividing cells, or meristems, control plant growth. Primary (apical) meristems, the dividing tissue at the tips of the roots, grow longer roots, and secondary meristems, the dividing tissue seen in the cross-sections, grow thicker roots.
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.
ADP (adenosine diphosphate)
Answer: "symbiosis" ; or, a "symbiotic relationship" .
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