Question

One end of the figure 17-1 shows an increase in the average beak size for a population of birds. When individuals at only one end of a bell curve of phenotype frequencies have high fitness , the result is

Answer 1

1. on end of figure 17-1 shows an increase in average beak size for a population of birds.

Directional stabilization

2. Figure 17-2 shows highest fitness toward the center of the curve.

Stabilizing selection.

3. Figure 17-3 shows smaller and larger beaks in a population of finches.

disruptive selection

4. If a mutation frequency introduces a new skin color in a lizard population, what factors might determine whether the frequency of the new allele will increase

whether the mutation makes some lizards more fit for their environment that other lizards.

5. genetic drift, the alleles frequencies in a gene pool change because of

Chance.

Step-by-step explanation:

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Answer 2

The answer is directional selection

Although there is no figure attached, when individuals at only one end of a bell curve of phenotype frequencies have high fitness, the result is directional selection. It is a type of selection that favours a new phenotype. Ddirectional selection favors dominant or recessive (ss) homozygote, in other words those phenotypes at only one end of a bell curve