How Does the Cholera Bacteria Cause Dehydration

question 61

Multiple Choice

How does the cholera bacteria cause dehydration?

• A) It secretes a toxin in the intestines that causes electrolytes to move out of intestinal cells, and water follows by osmosis and is lost.
• B) It secretes a toxin in the intestines that prevents the formation of solid feces.
• C) The bacteria lodges in the intestinal wall and pulls water out of the intestinal cells so it leaves the body.
• D) The bacteria lodges in the intestinal wall and prevents the formation of solid feces.
• E) The bacteria produces a toxin in the stomach and prevents proper food digestion.

Discern the implications of species extinctions on community dynamics and ecosystem functions.

Understand the concept and differences between primary and secondary succession.

Identify factors that influence ecological succession and community structure.

Recognize the impact of disturbances and stresses on ecosystems.

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Definitions:

Oscilloscope

An electronic instrument that visually displays varying signal voltages, usually as a two-dimensional graph of one or more signals as a function of time.

Action Potential

A rapid and temporary electrical charge that travels along the membrane of a neuron, signaling neuronal activity.

Single-Cell Recording

A neurophysiological technique for measuring the electrical activity of individual neurons in a living organism.

Electrode

A conductor through which electricity enters or leaves an object, substance, or region.