Which of the Following Pieces of Observational Evidence Does Our

question 25

Multiple Choice

Which of the following pieces of observational evidence does our modern "solar nebula" theory of the formation of the solar system NOT explain directly?

• A) the fact that all the planets revolve around the equator of the Sun in the same direction
• B) the difference in the composition of the terrestrial and jovian planets
• C) the ages of the oldest rocks on Earth, the Moon, and meteorites
• D) the plane of the orbit of Pluto
• E) the existence of comets in the outer solar system made mainly of frozen gases

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Definitions:

Inguinal Region

The area of the lower abdomen just above the leg crease, near the groin.

Popliteal Region

The area behind the knee where the thigh and calf meet, containing nerves, blood vessels, and muscles.

Cervical Region

Refers to the neck portion of the spine, comprising seven vertebrae that support the head and allow for its movement.

Medullary Cord

Part of the lymph node's internal structure composed primarily of B lymphocytes and plasma cells.