Module 14 - Extinction Factors Question Preview (ID: 54243)
Extinction Factors.
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Which of the following best describes why the ivory-billed woodpecker went extinct?
a) Climate change
b) Pollution
c) Natural factors
d) Removal of natural habitats
Which of the following most accurately summarizes why the dodo bird went extinct?
a) Natural factors
b) Climate changes
c) Impact event
d) Man made factors
Cogongrass has spread rapidly across the South. Cogongrass is an invasive species causing economic and ecological damages that impact forestry, agriculture, rangeland, and natural ecosystems. How has Cogongrass most likely affected natural species?
a) The population of native species has quickly declined, and some species may become extinct.
b) The population of native species has quickly increased, and some species may become extinct.
c) The population of native species has quickly declined, and some species may become more successful.
d) The population of native species has quickly increased, and some species may become more successful.
Which of the following best summarizes extinction factors that have occured on Earth over geologic time?
a) Most extinctions have been due to human-made factors.
b) Mass extinctions have occurred twice during Earth's history, once when the dinosaurs became extinct, and now due to human-mad
c) Most extinction have been due to natural factors.
d) Mass extinctions have occurred five times during Earth's history, all as a result of human-made factors.
Which of the following best explains why the thylacine went extinct?
a) Higher levels of pollution
b) Rapid climatic changes
c) Large asteroid impact event
d) Habitat destruction and over exploitation
Which of the following statements is FALSE?
a) Throughout Earth's history many species of organisms have gone extinct.
b) During Earth's history there have been several mass extinctions.
c) Organisms today appear to be going extinct at a normal rate.
d) All of the answer choices
These major mass extinctions throughout Earth's history were caused by which of the following?
a) Human-made extinction factors
b) Natural extinction factors
c) Global warming factors
d) All of the answer choices
An __________ species is a species that is very likely to become extinct in the near future.
a) endangered
b) extinct
c) adapted
d) all of the answer choices
Recent evidence suggests that __________ factors may be the cause of many extinctions arising today.
a) human-made
b) natural
c) pollution
d) all of the answer choices
Most extinctions that have occurred throughout Earth's long history have been a result of __________factors.
a) natural
b) human-made
c) man-made
d) global warming
Some extinctions have created new opportunities for different kinds of life to emerge and flourish such as __________ following the extinction of the dinosaurs.
a) mammals
b) trilobites
c) fish
d) all of the above
What percent of animal extinction is known to be due to man-made factors since 1960?
a) 98%
b) 100%
c) 39%
d) 79%
Which of the following best describes the factors that have caused extinctions over millions of years of geologic time?
a) Natural factors
b) Pollution factors
c) Habitat removal factors
d) Over harvesting factors
Which of the following most accurately describes the cause of the extinction of the dinosaurs at the end of the Mesozoic era?
a) Natural factors
b) Man made factors
c) Habitat destruction
d) Pollution
Which of the following would be considered a natural extinction factor?
a) Climate changes
b) Habitat destruction
c) Overharvesting
d) Pollution
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