When an effector receives input from both the sympathetic and the parasympathetic divisions, it is said to have ________ innervation.
Fill in the blank(s) with the appropriate word(s).
dual
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The number of chromosomes in a secondary oocyte is
A. less than the number in a polar body. B. the same as the number in a mature sperm. C. greater than the number in a polar body. D. greater than the number in a mature sperm. E. less than the number in a mature sperm.
T cells and B cells can be activated only by
A) pathogens. B) interleukins, interferons, and colony-stimulating factors. C) cells infected with viruses, bacteria, or cancer cells. D) exposure to a specific antigen at a specific site in a plasma membrane. E) disease-causing agents.
Discuss the steps involved in contraction of smooth muscle and explain why smooth muscle has a slower contraction cycle
What will be an ideal response
Third class lever systems favor which of the following?
A. speed B. range of motion C. strength D. both A and B E. all of the above