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WorksheetsUnit 2 Progress Check
Total questions: 20
Worksheet time: 18mins
Which of the following is the best metric for biodiveristy?
Species Richness
Species Eveness
Number of niche specialists
Number of niche generalists
Which of the following ecosystems would be most resilient to change?
High species diversity, low habitat diversity
High genetic diveristy, low species diversity
Low species diversity, high genetic diversity
High species diversity, high habitat diversity
Which of the following is true about a bottleneck effect?
It decreases genetic diversity with a population.
It increases genetic diversity within a population.
It increases species diversity within an ecosystem.
It decreases species diversity within an ecosystem.
In which of the following ecosystems would you expect to find the highest occurence of niche specialists?
An ecosystem with unevenly distributed resources.
An ecosystem with a low number of unique habitats.
An ecosystem with evenly distributed resources.
An ecosystem with a high number of unique habitats.
Which of the following is the mechanism of evolution?
Adaptations
Descent with modification
Natural selection
Acquired characteristics
Which of the following is an examlpe of a generalist?
Raccoons are omnivores and live in a variety of habitats
Koalas exclusively eat the leaves of the eucalyptus tree
Canada lynx live in forested, mountainous areas where their prey live
Orchid mantis thrives only on orchids in the tropics
Which of the following is an examlpe of a provisional service?
Soil microbes in forests help decompose fallen leaves
Timber harvested from trees in forests is used for buildings and homes
A forest park provides a community space of outdoor activities
Trees store carbon from the atmosphere
Which of the following describes a pioneer species?
Grasses grow in shallow soils
Lichens break down rock to form soil
Trees draw nutrients deep from forest soils
Flowers grow annually in shallow soils
Which of the following describes primary succession?
A volcanic island is colonized by lichens and moss.
A forest that is burned in a wildfire returns the following year.
A plot of land developed for city planning is slowly grown over by weeds.
A seafloor community destroyed by dredging returns after marine protections are put in place.
Which of the following represents an economic cultural ecosystem service?
Denali National Park in Alaska serves as a habitat for migrating caribou.
Denali National Park serves as a place of education for park visitors and local school groups.
Denali National Park attracts tourists who use stay in hotels and shop at local businesses in the surrounding community.
Denali National Park serves as a cultural landmark for First Nations Peoples who's ancestors first inhabitat the land.
Which of the following islands would you expect to be the most biodiverise?
Trinidad
Barbados
Dominica
Grenada
Which of the following islands would be most resilient to the changes brought upon by an invasive species?
Grenada
Barbados
St. Lucia
Tobago
Which of the following is the best examlpe of an anthropogenic disruption?
The introduction of an invasive plant species commonly used in landscaping into a forest.
The destruction of a coastal habitat due to hurricane winds.
A forest fire burning trees in a California forest.
Ocean tides filling tide pools at high tide.
Which of the following is the best example of a disruption that would decrease genetic biodiversity within a species?
A tornado that tears down the trees in a forest.
Increased annual rainfall causing flooding in a coastal ecosystem.
Illegal poaching of sea otters for their pelts.
Increased nutrient levels in a oceanic ecosystem, resulting in algal blooms.
Which of the following models gene flow?
A bird migrates from one island population to another.
A bird population experiences a sudden decrease in size due to a tropical storm.
Birds within the same population develop different mating behaviors over time.
Birds from a population leave to colonize a new island.
Which of the following models speciation?
A bird migrates from one population to another.
Birds with a population develop different mating behaviors over time.
Birds from a population leave to colonize a new island.
A group of birds experiences a decrease in population due to a tropical storm.
Select all of the following that would result in a decrease in genetic diveristy within a species.
Founder's effect
Bottleneck effect
Speciation
Gene flow
Which of the following organisms is the best examlpe of an ecologically tolerant organism?
A generalist carnivore
A specialist carnivore
A generalist omnivore
A specialist herbivore
A sudden and sharp decrease in the biodiversity of the globe.
Gene flow
Bottleneck
Founder's effect
Mass extinction
Which of the following statements is true?
Current human activity model global changes that have caused mass extinctions in the past.
Mass extinctions can only occur from natural disruptions.
3 of thr 5 mass extinctions in Earth's past were from anthropogenic causes.
Current extinction rates are lower than projected background extinction rates.
