The prick of a sharp pin would be the _________ that starts an action potential on a pain neuron

Fill in the blank(s) with the appropriate word(s)


Answer: stimulus

Biology & Microbiology

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Which of the following accounts for vision loss in sufferers of glaucoma?

A. intraocular pressure buildup due to poor drainage of the aqueous humor B. loss of photoreceptors in and around the fovea C. protein accumulation in the lens D. detachment of the retina from the outer part of the eye E. poor control of extraocular muscles

Biology & Microbiology

Over time, cancerous cells typically lose the cell adhesion molecules embedded in their plasma

membrane. Loss of these molecules is best associated with which of the following traits of cancer cells?

a. increased rate of cell division b. production of new proteins c. angiogenesis d. migration to new locations in the body e. loss of chromosomes

Biology & Microbiology

Which enzyme enables a retrovirus to convert its RNA genome into DNA?

A. DNA helicase B. reverse helicase C. DNA ligase D. reverse transcriptase

Biology & Microbiology

________ organisms have a particularly difficult time maintaining a proton motive force to synthesize ATP using ATPase

a. Acidophilic b. Alkaliphilic c. Microaerophilic d. Obligate anaerobic

Biology & Microbiology