Select the answer that is not true when comparing veins and arteries of the same diameter
A.
Veins have thinner walls.
B.
Veins have valves.
C.
Veins have fewer smooth muscle fibers.
D.
Veins have a larger lumen.
E.
Veins have more elastic tissue.
E
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A patient who has difficulty conceiving most likely has a problem in the ________ system
A) Reproductive B) Nervous C) Urinary D) Cardiovascular
Which of the following is the most common source of coccidian?
a. water contamination c. bird droppings b. food contamination d. rabbit droppings
What is one difference between visceral reflexes and somatic reflexes?
A. Visceral reflexes do not require interneurons in the CNS, whereas most somatic reflexes do. B. Visceral reflexes do not require afferent neurons, whereas somatic reflexes do. C. Visceral reflexes are unconscious while somatic reflexes are conscious. D. Visceral reflexes are stereotyped whereas somatic reflexes are unpredictable. E. Visceral reflexes involve somewhat slower responses than somatic reflexes.
Match each nitrogenous base with its description.
cytosine - adenine - thymine - guanine pyrimidine that binds with adenine - purine that binds with thymine - pyrimidine that binds with guanine - purine that binds with cytosine