The Diagram Illustrates Physical Size and Angular Size as Seen

question 9

Multiple Choice

The diagram illustrates physical size and angular size as seen by the observer. We can estimate the size in light years (or parsecs or km) of M31 from

• A) its angular size in degrees.
• B) its distance in light years (or parsecs or km).
• C) its angular size in degrees and its distance in light years (or parsecs or km).
• D) It is impossible to estimate the size of M31.

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Definitions:

Genotype

The genetic makeup of an individual, referring to the specific alleles possessed on the chromosomes.

Reaction Range

The concept that genetic potential sets limits on the range of possible developmental outcomes, but the environment determines where within those limits an individual will fall.

Epigenetic Framework

A perspective in biology and medicine that focuses on how external factors can influence the expression of genes without altering the DNA sequence.

Fetoscopy

A technique that uses a small camera, inserted through a small incision on the mother’s abdomen or cervix and placed into the amniotic sac, to examine and perform procedures on the fetus during pregnancy.