Which of the following cells is from a different lineage than the rest?
A. Proerythroblast
B. Erythrocyte colony-forming unit
C. Erythroblast
D. Myeloblast
E. Reticulocyte
D. Myeloblast
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Reabsorption of high levels of glucose and amino acids in the filtrate is accomplished by
A) facilitated diffusion B) passive transport C) countertransport D) secondary active transport
The antebrachial region is the
A. chest area. B. area in front of the elbow. C. bottom of foot. D. lower back. E. forearm.
A tactile receptor that responds to deep pressure is a
A) Root hair plexus. B) Ruffini corpuscle. C) Merkel's disc. D) Meissner's corpuscle E) Free nerve ending.
In excitation-contraction coupling,
A. calcium ions must bind with myosin to expose active sites on actin. B. myosin heads bind to exposed active sites on actin. C. cross-bridges form between myosin heads and calcium ions. D. movement of the troponin-tropomyosin complex causes actin myofilaments to slide. E. ATP binds to actin myofilaments.