An Observer in the Northern Hemisphere Takes a Time Exposure

question 109

Multiple Choice

An observer in the Northern Hemisphere takes a time exposure photograph of the night sky. If the illustration below depicts the photograph taken by the observer, which direction was the camera pointing?

• A) straight north
• B) straight east
• C) straight south
• D) straight west
• E) straight up, directly overhead

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Definitions:

Urochordates

A subphylum of chordates; includes the tunicates.

Vertebrates

Animals that possess a backbone or spinal column, including fishes, amphibians, reptiles, birds, and mammals.

Hemichordata

A phylum of marine animals that share some traits with chordates, such as a dorsal nerve cord, but have distinct features like a stomochord.

Larval Tunicates

The juvenile stage of tunicates (marine invertebrates), which is free-swimming and undergoes metamorphosis into the adult form.