A Value for Earth's Circumference Was First Calculated by

question 13

Multiple Choice

A value for Earth's circumference was first calculated by

• A) Columbus.
• B) Pythagoras.
• C) modern satellite measurements.
• D) Eratosthenes.

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Definitions:

Uterine Wall

The internal lining of the uterus, which thickens during the menstrual cycle in preparation for possible implantation of an embryo.

Birth Canal

The passage consisting of the cervix, vagina, and vulva through which a fetus travels during childbirth.

Rh Disease

A medical condition where an incompatibility between the blood types of a pregnant mother and her unborn child causes hemolytic disease in the fetus.

Red Blood Cells

Cells in the blood responsible for carrying oxygen from the lungs to the rest of the body, also known as erythrocytes.