You are looking at a slide of three crossed threads. Yellow is on the bottom, blue is in the middle, and red is on the top. When you rotate the adjustment knob forward (away from you) on your microscope, the stage rises. You move the adjustment knob to
focus on the middle thread. As you rotate the adjustment knob forward, which color thread will come into focus next?
A) red B) blue C) yellow
Answer: C
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Which of the following types of tissues is responsible for pumping blood throughout the body?
a) skeletal muscle b) smooth muscle c) cardiac muscle d) intercalated cells e) myoblasts
In Alzheimer patients, neural damage from amyloid plaques, may cause neuronal damage by
a. breaking down the blood-brain barrier. b. inducing glutamate toxicity. c. increasing calcium influx. d. both (a) and (b) above. e. both (b) and (c) above.
Which one of the following statements is FALSE?
A. The gustatory receptors are found in taste buds located on your tongue. B. Vallate papillae contain most of our taste buds. C. There are five basic taste sensations: salty, sweet, sour, bitter, and umami. D. Taste is highly influenced by smell. E. The five taste sensations can be mapped very specifically to certain parts of the tongue.
The concentrations of which ion is highest outside the axon?