The Disk-Shaped Structure That Nourishes the Embryo and Fetus Is

question 186

Multiple Choice

The disk-shaped structure that nourishes the embryo and fetus is called the:

• A) amniotic sac
• B) umbilical disk
• C) embryonic disk
• D) placenta

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Definitions:

Neutrons

Subatomic particles found in the nucleus of an atom, having no electric charge and a mass about equal to that of protons.

Protons

Positively charged subatomic particles found within the nucleus of an atom, contributing to the atom's charge and atomic number.

Electrons

Subatomic particles with a negative electrical charge, found in all atoms and acting as the primary carriers of electricity in solids.