The ascending aorta begins at (the)
A) external carotid artery.
B) conus arteriosus.
C) aortic valve.
D) apex of the heart.
E) All of the answers are correct.
C) aortic valve.
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When a cell is placed in a solution with a very low solute concentration, water diffuses into the cell. Such a solution is called a(n) _________ solution
A. hypertonic B. hypotonic C. isotonic D. endergonic
Meiosis of one cell results in production of __________.
A) one gamete. B) four gametes if female, one if male. C) four gametes if male, one if female. D) four gametes.
The white material that reduces friction at the ends of bones is called
A. the epiphysis. B. articular cartilage. C. the periosteum. D. the endosteum. E. white matter.
Na+-K+ ATPase is a countertransport antiport carrier, which always requires energy
Indicate whether the statement is true or false