Who First Used RR Lyrae Variable Stars to Determine Distances

question 52

Multiple Choice

Who first used RR Lyrae variable stars to determine distances in our Milky Way Galaxy?

• A) Henrietta Leavitt
• B) Edwin Hubble
• C) John Glenn
• D) Carl Sagan
• E) Harlow Shapley

Analyze empirical data to support or refute hypotheses regarding the genetic basis of behavior and morphological development.

Distinguish between behavioral polyphenism and behavioral polymorphism and understand the influence of environmental conditions on these phenomena.

Understand the basic concepts of song learning and its genetic influences in birds.

Comprehend the role of physiological mechanisms in bird song production.

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