The Rough-Skinned Newt Produces One of the Most Potent Toxins

question 26

Multiple Choice

The rough-skinned newt produces one of the most potent toxins on the planet. Scientists in Oregon have found that as newts evolve to produce a more deadly toxin, their primary predator, the garter snake, evolves ways to resist the toxin. This is an example of

• A)ecological trade-offs in the evolution of the newt.
• B)an adaptation of the newt to living in aquatic environments.
• C)reproductive isolation in a population of garter snakes.
• D)coevolution of predator and prey.

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Definitions:

Nucleic Acid

Macromolecules, such as DNA or RNA, that store and transfer genetic information in cells, fundamental to the function of living organisms.

Organic Groups

Chemically refers to molecules that contain carbon and hydrogen, typically associated with living organisms.

Coenzyme

An organic non-protein compound that binds with an enzyme to catalyze a reaction, essential for the function of many enzymes.

Organic Molecule

A compound containing carbon atoms bonded to hydrogen atoms and often other elements, fundamental to the chemistry of life.