Refer to the Graphs Shown

question 153

Multiple Choice

Refer to the graphs shown. The arrow that best shows an increase in supply is:

• A)W.
• B)X.
• C)Y.
• D)Z.

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Definitions:

Blastocyst

An early stage of embryonic development characterized by a fluid-filled sphere formed about 5 days after fertilization of an egg.

Implantation

The process by which a fertilized egg attaches to the lining of the uterus where it can then grow and develop into a fetus.

IUD

An intrauterine device, which is a small, often T-shaped birth control device inserted into a woman's uterus to prevent pregnancy.

Foramen Ovale

An opening in the septum between the two upper chambers of the heart (atria) that is present in the fetus but normally closes shortly after birth.