Plankton consists mainly of microscopic organisms that float in the water
____________________ Indicate whether the statement is true or false.
True
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Which organ of the gastrointestinal tract has a large commensal population of microorganisms?
A. Large intestine B. Small intestine C. Pancreas D. Liver E. Salivary glands
If a glutamate-gated channel opens an _____ is produced.
A. Inhibitory post-synaptic potential (IPSP) B. Excitatory post-synaptic potential (EPSP) C. Action Potential D. Explosion
An example of artificial active immunity would be
A. chickenpox infection, followed by lifelong immunity. B. chickenpox vaccine triggering extended immunity to chickenpox. C. giving a person immune serum globulins to chickenpox virus after exposure to the disease. D. a fetus acquiring maternal IgG to the chickenpox virus across the placenta.
Which of the following is an indirect method for estimating the number of microbes in a sample?
A. viable plate counts B. turbidity C. Coulter counter D. MPN E. membrane filtration