An 05 Star Has an H _α Line Present

question 55

Multiple Choice

An 05 star has an H _α line present in its spectra. What color is the line?

• A) red
• B) no color as the line is in the UV band
• C) blue
• D) no color as the line is in the infrared band

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Definitions:

Directional Selection

A type of natural selection in which one extreme phenotype is favored over other phenotypes, causing the allele frequency to shift over time in the direction of that phenotype.

Selection Differential

A measure of the difference between the mean phenotype of the selected parents and the mean phenotype of the general population.

Narrow Sense Heritability

A measure of how much of the variance in a trait among individuals in a population is due to additive genetic factors.

Neck Length

A physical trait referring to the distance from the base of an animal's skull to its shoulders, significant in studies of natural selection and adaptation.