If a Star Is Found by Spectroscopic Observations to Be

question 44

Multiple Choice

If a star is found by spectroscopic observations to be about 500 parsecs distant, its parallax is:

• A).2".
• B).5".
• C).02".
• D).002".
• E).005".

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Definitions:

Amino Acid Substitutions

Changes in the protein sequence where one amino acid is replaced by another, potentially altering protein function or stability.

Biogeography

The study of the distribution of species and ecosystems in geographic space and through geological time, including the factors that influence these distributions.

Distributions of Organisms

The geographical and ecological patterns in which species and populations are spread across different habitats and regions.

Amino Acid Sequences

The order of amino acids in a polypeptide or protein, which determines the protein's structure and function.