What protein is the principal component of skeletal muscle thick filaments?
A. actin
B. myosin
C. troponin
D. calmodulin
E. tropomyosin
B
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If an animal cell has 18 chromosomes and undergoes mitosis, how many chromosomes would each daughter cell have?
A) 9 B) 36 C) 23 D) 18 E) It varies, but the total number in the two daughter cells will always add up to 18.
Which of the following is not a type of fascicle arrangement?
A) parallel B) palmate C) unipennate D) circular E) convergent
Terminal and intramural ganglia are associated with the parasympathetic branch of the ANS
Indicate whether this statement is true or false.
Alpha2-adrenergic receptors on presynaptic axon terminals, when stimulated, cause ________.
A. increased release of norepinephrine B. decreased release of norepinephrine C. increased release of epinephrine D. decreased release of epinephrine