What condition develops when serotonin levels in the brain are deficient?
A. insomnia
B. epilepsy
C. Alzheimer's disease
D. Parkinson's disease
E. Huntington's disease
A. insomnia
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Peptidoglycan is a compound in ____
a. bacterial flagella b. bacterial cell walls c. archaean cell walls d. archaean flagella e. eukaryote cell walls
The genetic difference between familial retinoblastoma and sporadic retinoblastoma appears to be based on those with the familial form starting out being ________, whereas those with the sporadic form start out being ________
Fill in the blank(s) with correct word
Interleukin-1 stimulates ________________, which activate the remainder of the T and B cell immune system responses.
A. B cells B. T cells C. helper T cells D. natural killer cells
The dengue viruses are spread by (fleas/mosquitoes/ticks).
Fill in the blank(s) with the appropriate word(s).