Splanchnic circulation involves the blood supply that feeds and drains:
A) abdominal digestive organs. B) thoracic digestive organs.
C) thoracic cardiovascular organs. D) abdominal reproductive organs.
Answer: A
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Lactose intolerant individuals cannot digest the _________ lactose because they lack the enzyme _________
A. polysaccharide; maltase B. disaccharide; lactase C. monosaccharide; dextrolactase D. lipid; pancreatic lipase E. fatty acid; sucrolactase
Simple diffusion and facilitated diffusion differ in that facilitated diffusion requires assistance of a membrane protein to move substances across a membrane.
a. true b. false
Semen is
A. responsible for engorgement of erectile tissue of the penis. B. sperm cells plus the secretions of accessory glands. C. is composed only of sperm cells. D. a vaginal secretion needed to activate sperm cells. E. produced solely by the testis.
"Endocrine" means
A. acts upon target cells. B. internal secretion. C. hormone synthesis. D. fast-acting compound.