Given That Few Species Are Known to Be Directly Jeopardized

question 51

Multiple Choice

Given that few species are known to be directly jeopardized by climate change, why is climate change considered a major ecological threat?

• A) Change is occurring so rapidly that many more species will soon be affected.
• B) The species known to be affected are vital to life on Earth.
• C) The effects of climate change, once begun, cannot be stopped or mitigated.
• D) Any threat, such as climate change, that is currently low will inevitably increase in the future.

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Definitions:

Voluntary Fixation

A consciously controlled process of stabilizing focus on a particular stationary or moving object.

EOG

Electrooculography, a technique for measuring the corneo-retinal standing potential that exists between the front and the back of the human eye.

Snellen Eye Chart

A chart used to measure visual acuity, consisting of rows of letters decreasing in size, which is read from a standard distance.

Ophthalmoscope

A medical device used by doctors to examine the inside of the eye, including the retina and the optic nerve.