Members of which group of hormones are made from cholesterol?
A. amino acid derivatives
B. peptides
C. proteins
D. steroids
D
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Which of the following is correct about the autonomic nervous system (ANS)?
A. The ANS is part of both the CNS and the PNS. B. ANS functions are involuntary. C. ANS motor neurons innervate cardiac muscle fibers, smooth muscle fibers, and glands. D. ANS motor pathways always include two neurons. E. All of the choices are correct.
Which cytoskeletal element is the largest?
a. microtubules b. macrotubules c. small filaments d. macrofilaments e. microfilaments
Which process begins as the surface of the blastocyst next to the inner cell mass adheres to the uterine lining?
A) oocyte activation B) placentation C) embryogenesis D) implantation E) blastocyst formation
Which circuit of the cardiovascular system includes the left ventricle and aorta?
A. Pulmonary circuit B. Cardio circuit C. Coronary circuit D. Systemic circuit