Which type of tissue binds and supports body parts?
A. Muscular
B. Connective
C. Epithelium
D. Nervous
Answer: B
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The choroid layer:
a. helps focus light on the rear of the eye b. produces tears c. prevents the scattering of incoming light rays d. is the white of the eye
Cerebrospinal fluid is produced by ________.
Fill in the blank(s) with the appropriate word(s).
Your young child has a middle ear infection: otitis media. There is a build-up of fluid, bacteria, and white blood cells, or pus, inside of the middle ear chamber. Why has this affected the child's hearing?
A) The cochlear receptor cells cannot move. B) The bacterial infection has destroyed the otoliths. C) The round window cannot vibrate to dissipate pressure. D) The auditory ossicles cannot vibrate freely. E) The tympanum is destroyed.
How do NK cells detect cancer cells?
A) NK cells recognize cancer cells by the abnormally large size cancerous cells become. B) NK cells recognize cancer cells by the abnormally small size cancerous cells become. C) NK cells recognize cancer cells by the antibodies the cancer cells secrete. D) NK cells recognize cancer cells by the cytokines the cancer cells secrete. E) NK cells recognize cancer cells by the tumor-specific antigens on the plasma membranes of cancer cells.