A Scientist Studied Peregrine Falcons to Determine Why the Numbers

question 36

Multiple Choice

A scientist studied peregrine falcons to determine why the numbers of birds was declining.She determined that

• A)global warming (too much carbon dioxide)had increased the death rates in the newly hatched chicks.
• B)the genetic diversity of the falcons was too low to sustain their population level.
• C)the falcons had lost much of their habitat due to human developments.
• D)the falcon's habitat had been fragmented and the subsequent edge effect affected their ability to hunt for prey items.
• E)the levels of DDT in the environment were having a detrimental effect on eggs (causing the eggshells to be too thin)that were being laid by the female falcons.

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Definitions:

Fire Station

A facility housing fire engines and firefighters, serving as a base for responding to fire emergencies.

Past Participle

A verb form used to create perfect tenses and the passive voice, typically ending in -ed, -en, -d, -t, or -n.

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Antarctica

The Earth's southernmost continent, containing the geographic South Pole, and characterized by its vast ice sheets.