The process during which potassium and hydrogen
ions, penicillin, and some toxic substances are put
into the urine by active transport is
a. tubular secretion.
b. reabsorption.
c. filtration.
d. countercurrent multiplication.
e. diffusion.
Answer: a
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Friedreich's ataxia is a condition associated with defective mitochondria. Which symptom is not associated with this condition?
a. Profuse sweating b. Loss of coordination c. Weak muscles d. Poor balance e. Heart problems
Phytochemicals in low quantities in a person’s diet
may lead to a. high blood pressure. b. increased incidence of athletes foot. c. macular degeneration. d. halitosis. e. none of these.
Given that multiple diverse phyla (e.g. diverse phylogenetic groups) of microorganisms can perform similar functions in ecosystems,
how we might predict the microbial functions performed by a particular organism or in a particular environment without relying on growing all of the microbes in the lab? What will be an ideal response?
How is life defined?
A. Life is determined by neural activity. B. The only requirement for life is the ability to reproduce. C. Life is defined through a set of shared characteristics that all living things display. D. A living thing must be able to move.