A sense of balance is produced by the ________
a. vestibular apparatus
b. pinna
c. circular papillae
d. bulb of Krause
a
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Paralogs always have the same function
Indicate whether the statement is true or false.
Superantigens produce a harmful immune response because
A) they activate too many T cells, causing excessive inflammation and cell damage. B) they initiate a type I allergic response resulting in excessive inflammation. C) too many phagocytes are activated and destroy host tissue. D) a strong immune response is necessary to protect the host from the pathogen.
A sperm is produced lacking an acrosome. Which of the following will likely result?
1.failure to complete meiosis
2.inability to swim
3.inability to make ATP
4.inability to penetrate the zona pellucida
Regarding syphilis, which one of the following is most accurate?
A. The characteristic lesion of primary syphilis is a painful vesicle on the genitals B. In secondary syphilis, the number of organisms is low, so the chance of transmitting the disease to others is low C. In secondary syphilis, both the rapid plasma reagin (RPR) and the fluorescent treponemal antibody-absorbed (FTA-ABS) tests are usually positive D. The antibody titer in the FTA-ABS test typically declines when the patient has been treated adequately E. In congenital syphilis, no antibody is formed against T. pallidum because the fetus is tolerant to the organism