Which of the following characteristics is not associated with erythrocytes?
a) Filled with hemoglobin
b) Biconcave discs
c) Capable of protein synthesis
d) Anucleate
Answer: c) Capable of protein synthesis
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Which of the following statements regarding the brain areas that direct emotion is not true?
A. The cerebral cortex is responsible for control over emotions. B. The hypothalamus is the site of the conscious feeling of emotion. C. The limbic system delivers information about emotion from the cerebral cortex to the hypothalamus. D. The hypothalamus integrates emotional behaviors. E. None of the choices are true.
In which region of the nephron does the fractional reabsorption of water vary the most in response to variation in the state of hydration?
A. The collecting duct B. The glomerulus C. The distal convoluted tubule D. The proximal convoluted tubule E. The loop of Henle
Processing centers in the medulla oblongata coordinate which of the following?
A) coughing reflex B) emotions C) defecation D) sensory reflexes E) All of the answers are correct.
A eukaryotic cell that receives a "go-ahead" signal at the G1 checkpoint of the cell cycle will
complete the cycle and divide. move directly into the M phase. move directly into the G2 phase. enter a resting stage. stop growing.