Plankton consists mainly of microscopic organisms that float in the water

____________________ Indicate whether the statement is true or false.


True

Biology & Microbiology

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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

Biology & Microbiology

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

Biology & Microbiology

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.

Biology & Microbiology

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

Biology & Microbiology