Which of the Following Statements About Animal Development Is False $\beta$

question 7

Multiple Choice

Which of the following statements about animal development is false?

• A) Signaling molecules interact to produce different combinations of signals that eventually guide embryonic cells to differentiate along different pathways.
• B) \(\beta\)-catenin is necessary but not sufficient for the formation of the primary embryonic organizer.
• C) Blastomeres are early embryonic cells.
• D) The mouth of the sea urchin forms where the archenteron makes contact with the ectoderm.
• E) Cells actively migrate during gastrulation.

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Definitions:

Orthostatic Hypotension

A form of low blood pressure that occurs when standing up from sitting or lying down, leading to dizziness or fainting.

Blood Pressure

The force exerted by circulating blood on the walls of blood vessels, often measured as an indicator of cardiac health.

Baroreceptor Function

The role of special sensors (baroreceptors) located in blood vessels that help regulate blood pressure by detecting pressure changes.

Tingling

A sensation of prickling, stinging, or numbness, often indicating the beginning of nerve recovery or damage.