Insufficient production of acetylcholine in the synapses of the brain, abnormal tangled neurons, and large deposits of beta-amyloid are problems associated with which one of the following diseases?
A) meningitis
B) Alzheimer's disease
C) rabies
D) Parkinson's disease
E) epilepsy
B
Biology & Microbiology
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Biology & Microbiology
Certain plants may form tissues called ________ when their roots are flooded, whereas other plants may always form these tissue types.
A. parenchyma B. collenchyma C. sclerenchyma D. aerenchyma E. None of the choices is correct
Biology & Microbiology
A secondary carnivore is indicated by
a. A. b. B. c. C. d. D. e. E.
Biology & Microbiology
Scientists divide the ocean into zones based on various factors such as sunlight penetration and distance from the shoreline. Which of the following areas of the ocean has the greatest species diversity?
A) deep sea B) ocean floor C) open ocean D) coastal area
Biology & Microbiology