Succession and Extinction Answers
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Which factors involving the activities of people are a threat to biodiversity?
A
pollution and successionB
habitat loss and predationC
poaching and habitat lossD
succession and poaching2
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Which of the following could result in the extinction of a species?
A
harsh restrictions on poachersB
increase in the habitat size of a speciesC
adding a new species to the habitatD
decrease tourism in protected areas3
Which statement best describes ecological succession?
A
It is always caused by human intervention.B
It occurs after a disturbance.C
It never occurs in a predictable pattern.D
It is a series of rapid changes in an ecosystem.4
What is the role of a pioneer species in primary succession?
A
to destroy parasitesB
to provide shadeC
to provide fruitD
to produce the soil
6
In one species of bird, there are three varieties of feather color. What is this an example of?
A
ecosystem diversityB
species diversityC
genetic diversityD
color diversity7
Which is one event that may lead to Primary succession?
A
clear-cuttingB
climate changeC
volcanic eruptionD
introduced species8
According to the pie chart, which cause results in the most extinctions?
A
otherB
introduced speciesC
habitat lossD
hunting and poaching9
Which disturbance would result in primary succession?
A
harvesting wheat by using a combine harvester at the end of the growing seasonB
controlled burning to stimulate the growth of forest trees such as sequoiaC
the formation of Surtsey, a volcanic island off of the southern coast of IcelandD
the effect of a large herd of elephants on the grasses and shrubs in an area10
The number of rhinoceroses has decreased to near extinction. How are rhinoceroses classified under the Endangered Species Act?
A
endangeredB
threatenedC
extinctD
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