At What Point During Fetal Development Does the Bone Marrow

question 6

Multiple Choice

At what point during fetal development does the bone marrow become the primary organ of hematopoiesis?

• A)3 months' gestation
• B)14 days' gestation
• C)Birth
• D)6 months' gestation

---

Definitions:

Subduction

A geologic process where one tectonic plate moves under another, sinking into the earth's mantle.

Caldera

A vast crater on a volcano, often resulting from a major eruption and subsequent collapse of the volcano's opening.

Magma

Igneous rocks form from this liquid rock that exists below the Earth's surface, cooling and solidifying over time.

Past Eruptions

Historical instances of volcanic activity where molten rock (lava), volcanic ash, and gases were expelled from a volcano.