Two Pairs of Associated Sunspots Appear on the Visible Disk

question 28

Multiple Choice

Two pairs of associated sunspots appear on the visible disk of the photosphere of the Sun, one pair in each hemisphere. If the magnetic polarity of the westernmost spot in the northern hemisphere is found to be N, what will be the magnetic polarities of the other three spots?

• A) The magnetic polarity of all the spots at this time will be N because polarity of sunspots changes only every 11 years.
• B) The magnetic polarity of the other northern spot will be N, while in the two spots in the southern hemisphere it will be S.
• C) The magnetic polarity of the other northern spot will be S, and the southern hemisphere spots will match this alignment; the westward spot will be N, while the eastward spot will be S.
• D) The magnetic polarity of the other northern spot will be S, while in the southern hemisphere the westward spot will be S and the eastward spot will be N.

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Definitions:

Ectoderm

The outermost layer of cells in the early embryo from which the skin, nervous system, and sensory organs develop.

Embryonic Development

The process during which an embryo forms and develops, starting from fertilization to the fetal stage.

Nervous System

The complex network of nerve cells and fibers that transmits signals between different parts of the body, coordinating actions and sensory information.

Proximodistal Pattern

The pattern of development that proceeds from the middle of the organism out to the periphery.