true or false? Replication of chromosomes occurs between meiosis I and meiosis II.
a. true
b. false
b. false
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The parasympathetic division of the ANS includes
A) preganglionic neurons in the brain stem. B) neurons with a greater range of effects upon the target organs than have the neurons of the sympathetic division. C) ganglionic neurons in the parasympathetic chain. D) preganglionic neurons in the lumbar segments of the spinal cord. E) None of the answers are correct.
What is the function of IgG antibodies?
A) They play a role in the activation of B cells. B) They attack pathogens before they enter the body tissues. C) They are responsible for defense against many viruses, bacteria, and bacterial toxins. D) They accelerate inflammation upon exposure to antigens. E) They are responsible for cross reactions between incompatible blood types.
The major job of coenzymes in oxidative phosphorylation includes all of the following except
A) release of hydrogen ions. B) ionization of hydrogen atoms. C) release of electrons to the first cytochrome of the electron transport chain. D) the breaking of carbon-carbon covalent bonds. E) None of the answers is correct.
Whales are air-breathing aquatic mammals, and some species can remain underwater for long periods of time. Which type of skeletal muscle fibers are most likely dominant in these deep diving whales?
A. Fast (IIb) fibers B. Fast (type IIa) fibers C. White fibers D. Slow fibers