The figure below shows the number of leaves produced by Persicaria maculosa genotypes at differing light intensities. Each shade of gray indicates the norm of reaction for a different genotype. Imagine that natural selection always favors plants with the most leaves. If these plants grow in environments that vary in light intensity, why is it difficult to predict which genotype will be favored by selection? 
Definitions:
Rapport
A harmonious relationship in which people or groups concerned understand each other's feelings or ideas and communicate well.
Mutual Confidence
The shared belief in the reliability, truth, ability, or strength of each other within a relationship.
Mutual "Liking"
A reciprocal feeling of fondness or affection shared between individuals.
Violence Triad
A theory suggesting that three behaviors during childhood (animal cruelty, obsession with fire setting, and persistent bedwetting) are predictive of violent tendencies later in life.
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