One function of sphincter muscles is to
a. control the passage of food through the GI tract
b. secrete digestive juices into the GI tract
c. control peristalsis
d. trigger hormone release
e. grind large food particles
Ans: a. control the passage of food through the GI tract
You might also like to view...
In a bacterial cell, the three genes of the lactose operon are
A) expressed continuously. B) expressed when lactose synthesis is required. C) expressed only in the presence of lactose. D) never expressed, because they are pseudogenes.
The main function of villi and microvilli in the small intestine is to ________
a. all of the choices b. secrete bile salts c. increase surface area for absorption d. produce vitamins
The plant hormone that promotes fruit ripening
is a. auxin. b. gibberellin. c. cytokinin. d. abscisic acid. e. ethylene.
What is ELSI?
What will be an ideal response?