The ________ becomes part of the umbilical cord, serves as a shock absorber for the embryo, and produces formed elements of blood and germ cells for the embryo.
A. amnion
B. chorion
C. yolk sac
D. allantois
Answer: C
Anatomy & Physiology
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Which molecules are scientists studying to understand the nature of cell control and genetics?
A) Amino acids B) Nucleic acids C) Phospholipids D) Steroids
Anatomy & Physiology
What kind of skin is tanned into leather and typically used to make boots?
A) rhea B) ostrich C) ratite D) emu
Anatomy & Physiology
Extrinsic control of the GFR
a. is mediated by sympathetic nervous system input to the afferent arterioles b. is aimed at the regulation of arterial blood pressure c. does not require a special mechanism but occurs as part of the baroreceptor reflex d. decreases the GFR e. has all of the above characteristics
Anatomy & Physiology
Individual muscle cells are surrounded by what_____.
Fill in the blank(s) with correct word.
Anatomy & Physiology