For which of the following populations/samples would it be MOST inappropriate to use the spread-plate technique to quantify viable cells?
a. Escherichia coli K-12
b. Bacillus anthracis
c. Haemophilus influenzae
d. soil sample
Answer: D
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Which substance is not capable of diffusing across the endothelial cells of a capillary? a. Carbon dioxide b. None are capable of diffusing across the endothelial cells
c. All are capable of diffusing across the endothelial cells. d. Small lipid soluble molecules e. Oxygen
The figure listed above is known as
a. a book lung. b. a tracheal system. c. gills. d. a lung micrograph. e. none of these.
The thick liquid food that enters the small intestine from the stomach is called _____.
Fill in the blank(s) with the appropriate word(s).
Which structure would allow you to move your hand away from a hot burner after touching it?
A) sensory neuron B) interneuron C) motor neuron D) glial cell