Which stage of the cell cycle immediately precedes the S phase?
G1
G2
M
None of the choices are correct.
G1
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While recovering from a heart infection a person learns that the lymphatic system helps remove damaged tissue from the body. What should the person remember about the lymphatic system?
A) It is controlled by neurotransmitters B) It releases chemicals through the general circulation C) It aids to isolate diseases within organs D) It runs parallel to the cardiovascular system
The cells of excitable and nonexcitable tissues share which of the following properties?
a. a threshold potential b. a resting membrane potential c. an ability to open the Na+ gates d. all of these answers. e. none of these answers.
Trace the route of milk from its site of production to the body surface
A) secretory alveoli, lactiferous sinus, lactiferous duct, ducts within a lobule, surface of the nipple B) secretory alveoli, ducts within a lobule, lactiferous duct, lactiferous sinus, surface of the nipple C) surface of the nipple, secretory alveoli, ducts within a lobule, lactiferous sinus, lactiferous duct D) ducts within a lobule, secretory alveoli, lactiferous sinus, lactiferous duct, surface of the nipple E) lactiferous sinus, lactiferous duct, ducts within a lobule, surface of the nipple, secretory alveoli
What is the only sense in which signals can reach the cerebral cortex without passing first through the thalamus?
A. Vision B. Equilibrium C. Taste D. Smell E. Touch