Which Properties Can Be Plotted on the Horizontal Axis of an H-R

question 51

Multiple Choice

Which properties can be plotted on the horizontal axis of an H-R diagram?

• A) luminosity, apparent magnitude, and absolute magnitude
• B) luminosity, color, and spectral class
• C) temperature, color, and spectral class
• D) temperature and luminosity
• E) spectral class only

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Definitions:

Mitochondrial DNA

Genetic material found in mitochondria, the energy-producing organelles of cells, passed almost exclusively from mother to offspring.

Common Ancestor

A concept in evolutionary biology referring to the most recent ancestral form or species from which two different species evolved.

Homology

Homology refers to the similarity in structure, position, or evolutionary origin of traits among different species, indicating a common ancestral origin.

Homoplasy

The occurrence of similar traits in different species not due to common ancestry, often resulting from convergent evolution or evolutionary reversals.