Which structure is an important site for early blood cell formation and is the first of the extraembryonic membranes to form?

A. Chorion
B. Zona pellucida
C. Yolk sac
D. Amnion


Answer: C

Anatomy & Physiology

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Indicate whether this statement is true or false.

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Before putting away the microscope in the storage cabinet you must observe all of the following except ________

A) clean the lenses B) remove the slide from the stage C) wrap the cord around the microscope D) rotate the highest power objective lens in position

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The membrane proteins that respond to chemical stimuli to produce sweet, bitter, and umami sensations are called

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Anatomy & Physiology