The purpose of the two small muscles, the tensor tympani and the stapedius, in the ear is to
-reduce damage to the earbones.
-protect the tympanic membrane.
-contract quickly when there is a loud sound.
-move the ossicles.
-All of the answers are correct
All of the answers are correct
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A) myelinated. B) unmyelinated. C) larger than preganglionic fibers. D) located in the brain. E) located in the spinal cord.
How does the caudal fin of a fish generate thrust?
What will be an ideal response?
Erythroblastosis fetalis:
a. usually occurs in a mother's first-born baby b. occurs in the case of an Rh-positive mother and an Rh-negative baby c. occurs in the case of an Rh-positive baby and an Rh-negative mother d. both A and B above
Separation of the cytoplasm during cell division is called ___________.
A. telophase B. anaphase C. metaphase D. cytokinesis E. mitosis