Which of the Following Statements About the Mammalian Blastocyst Is

question 18

Multiple Choice

Which of the following statements about the mammalian blastocyst is false?

• A) The trophoblast gives rise to the embryo proper.
• B) Maternal genes are expressed during cleavage.
• C) The blastocyst implants itself in the mother's uterus.
• D) Early mammalian cleavage is relatively slow.
• E) The trophoblast contributes to formation of the chorion.

---

Definitions:

Mobile Sources

Objects or devices that emit pollutants while in motion or operation, such as cars, trucks, and industrial machinery.

Environmental Impact Statement

An Environmental Impact Statement is a document that provides detailed information about the significant environmental effects of a proposed project.

Federal Action

Formal measures or interventions taken by the federal government, usually implying legislation, regulations, or legal proceedings.

Clean Water Act

United States federal law aimed at reducing pollution in the nation's waterways and regulating the discharge of pollutants.