Which of the Following Best Illustrates the Intrinsic Value of an Ecosystem

question 15

Multiple Choice

Which of the following best illustrates the intrinsic value of an ecosystem?

• A)Woodpeckers in the Black Hills eat mountain pine beetles that have been killing millions of acres of pine forests in the western U.S.,costing millions of dollars in lost timber sales and creating an extreme fire hazard.
• B)A wetland filters runoff and detoxifies water before it percolates into drinking water aquifers.
• C)An estuary is often a stopover location for millions of migrating shorebirds that need to stop and fuel up on the invertebrates living in the mudflats.
• D)Chippewa National Forest in Minnesota provides jobs for loggers.
• E)My professor's prairie provides flowers for her colony of honeybees to harvest pollen.

---

Definitions:

Cochlea

A spiral-shaped, fluid-filled inner ear structure that is responsible for converting sound waves into nerve impulses to be sent to the brain.

Cochlear Implant

A medical device that bypasses damaged structures in the inner ear and directly stimulates auditory nerve fibers to provide a sense of sound to individuals who are profoundly deaf or severely hard-of-hearing.

Hair Cells

Sensory cells located in the inner ear that are responsible for translating sound vibrations into electrical signals for hearing.

Proprioceptive Feedback

Sensory information received from muscles and tendons about body position and limb movement.