Brain waves of this type predominate when an individual is attentive and alert
A) alpha B) delta C) theta D) beta
Answer: D
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All of the following are factors that influence synovial joint stability EXCEPT?
A) structure and shape of the articulating bone B) strength and tension of joint ligaments C) arrangement and tension of the muscles D) number of bones in the joint
Which is a TRUE statement about smooth muscle?
A. Smooth muscle does not use troponin-tropomyosin to regulate cross-bridge activity. B. Smooth muscle does not have thick and thin filaments. C. Smooth muscle is striated. D. The myosin in smooth muscle requires phosphorylation before it can bind to ATP. E. Changes in cytosolic calcium do not regulate cross-bridge activity in smooth muscle.
For the following muscle shapes, which one is thick and tapered like the biceps brachii muscle?
A) fusiform B) parallel C) convergent D) pennate
All of the following are correct regarding RNA except
A) it contains ribose sugar. B) molecular shape varies with hydrogen bonding along the length of the strand. C) the nitrogenous base is made of adenine, guanine, cytosine, and uracil. D) it makes protein as directed by DNA. E) it contains a double helix.