In a microbiology lab, which of the following has the most entropy?
a. bacterial culture after one day of growth
b. bacterial cultures freshly inoculated
c. bacterial culture after a visit to the autoclave
d. bacterial culture after four days of growth
c. bacterial culture after a visit to the autoclave
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Unlike xylem, phloem is made up of __________
A. cells that transport solutes B. cells that still have organelles C. cells that run the length of the plant
Contraction of the muscles surrounding an arteriole that decreased its diameter by 50% would
A. increase the resistance in the arteriole approximately 16 fold. B. decrease the resistance in the arteriole approximately 16 fold. C. increase the resistance in the arteriole by approximately 50%. D. decrease the resistance in the arteriole approximately 50%. E. not be expected to change resistance in the arteriole.
Humans with mutations in the AQP1 (aquaporin-1) gene do not produce the AQP1 protein. The absence of AQP1
causes an inability to ____ in these individuals.
a. produce concentrated urine b. recognize thirst c. make large volumes of dilute urine d. control sweating e. salivate
What occurs as a result in a drop in the level of a hormone?