Which of the following statements best describes the fluid mosaic model of the plasma membrane? a protein bilayer sandwiching a layer of lipids
A)a single layer of proteins surrounding a single layer of lipids
B)a single layer of proteins with lipid molecules dispersed within
C)a single layer of lipids surrounding a layer of proteins
D)a lipid bilayer with protein molecules dispersed within it
D)a lipid bilayer with protein molecules dispersed within it
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Hemostasis is the production of formed elements of blood.
Answer the following statement true (T) or false (F)
Which organ is not considered an accessory digestive organ?
A. Teeth B. Salivary glands C. Tongue D. Pancreas E. Pharynx
Increased cardiac output would result from increasing:
A) stroke volume B) blood viscosity C) heart rate D) vasoconstriction E) both A and C F) both B and D
The defecation reflex
A. is stimulated by distention of the rectum. B. inhibits further peristalsis in the rectum and lower colon. C. constricts the internal anal sphincter. D. lasts several hours. E. None of these choices is correct.