Which of the Following Statements Is True

question 78

Multiple Choice

Which of the following statements is true?

• A)The embryo/fetus develops most of its organs during the preconceptual period.
• B)The placenta blocks toxic substances from reaching the embryo/fetus.
• C)Eight weeks after conception and until its birth,the developing human being is called a fetus.
• D)A proper functioning placenta allows the mother's blood to mix with her fetus's blood.

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Definitions:

Leukocytes

White blood cells that are part of the immune system and defend the body against both infectious disease and foreign materials.

Reticulocytes

Immature red blood cells recently released from the bone marrow into the bloodstream, indicative of red blood cell production and turnover.

Anaphylaxis

A serious and potentially fatal allergic response that can quickly develop following exposure to a substance that triggers an allergy.

Anisocytosis

A condition marked by a significant variation in the sizes of cells, particularly red blood cells, often an indicator of various types of anemia.