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Unit 2 Biodiversity AP Environmental Science Flashcards | StudBud
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Unit 2 Biodiversity AP Environmental Science
Unit 2 Biodiversity AP Environmental Science
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1
Which of the following is NOT considered an environmental stressor?
Long term stability in environmental conditions.
Temperature, light, moisture, and pH changes
Natural disasters like fires, floods, storms, etc.
Competition, predation, parasites, lack of mates
2
Which of the following is NOT stated correctly?
Independent variable: the effect measured and placed on the Y axis.
Hypothesis: If/then statment predicts expected results in experiment
Experimental groups: change only ONE factor
Control group: No change in independent variable allowing for comparison.
3
Which of the following is NOT true of primary succession?
An example would be changes on the bare rock after a volcanic eruption
It begins in an area where no soil is present.
An example would be changes after a forest fire.
It requires pioneer species like lichen and mosses to build soil.
4
Which of the following is a FALSE statement about biodiversity?
A population with high genetic diversity responds better to stressors.
Biodiversity increases when adverse conditions, such as pollution, exists.
Biodiversity decreases when adverse conditions, such as pollution, exists.
More species diversity allows quicker recovery after a disturbance.
5
Which of the following is NOT true about island biogeography?
Islands closer to the mainland tend to have less biodiversity
Larger islands tend to have higher biodiversity.
Island biodiversity is similar to fragmentation of forests on land.
Islands closer to the mainland tend to have higher biodiversity
6
A good example of a pioneer species is:
lichens
a elephant
an oak tree
redwoods
7
Natural selection may promote resistance of a weed to a herbicide.
False
True
8
Which of the following does NOT correctly describe a population bottleneck effect?
Bottlenecks can be caused by the introduction of an invasive species
Bottlenecks lead to decreased genetic diversity.
They can be caused by anthropogenic factors like clear-cutting/development
Bottlenecks lead to increased genetic diversity.
9
Which of the following is NOT true about a keystone species?
Their loss can cause an ecological cascade and population crash.
They have a small effect to community if removed
Examples include alligators, beavers, sea otters, and mangroves.
Their loss can cause extinction of other species disrupting entire food web
10
Which of the following is NOT true of a specialists species?
They tend to decrease in number when fragmentation of habitat occurs.
They include many amphibians, pandas, and koala bears.
They have a wider range of tolerance than generalist species
They tend to be more susceptible to disruptions in an ecosystem.
11
Which of the following is NOT true in regards to disturbances?
Succession often occurs after a disturbance.
Anthropogenic disturbances have decreased in frequency and intensity
Resistance is the ability to remain unchanged when a disturbance occurs.
Resilience is the ability to recover from a disturbance
12
All other aspects being equal, higher species EVENESS in an ecosystem means it has a higher biodiversity.
True
False
13
Which of the following ecosystem services are NOT paired correctly?
Intrinsic: Goods and services
Provisioning: Food, lumber, medicine
Regulating: Removing carbon, cycling water and nutrients
Support: pollination, water filtration, natural pest control
14
Which of the following is NOT true about an indicator species?
They indicate a distintive aspect of an ecosystem is present
They may decline due to parasites, overhunting, or non native species
They are not usually affected by pollution, droughts, or habitat loss
It gives early warning signs of damage or danger to a community.
15
Which of the following does NOT describe species RICHNESS?
The more kinds of species the higher the species richness.
It refers to the abundance of individuals within each species.
It refers to the total number of species in an area.
It affects biodiversity of an area.
16
Which of the following ecosystem services includes tourism, real estate, and recreation?
Regulating
Provisioning
Cultural
Support
17
Generalist species are more common on islands (compared to the mainland).
True
False
18
Which of the following would NOT describe an adaption?
It can be behavioral or physical trait that increases fitness.
It can allows a species to survice where many others cannot.
It decreases the chances of survival in a species
It may be caused by natural genetic diversity or an added mutation.
19
Which of the following correctly lists the natural progression of vegetation in succession?
trees, shrubs, grasses, moss, lichen
lichen, moss, grasses, shrubs, trees
grasses, moss, lichen, shrubs, trees
lichen, moss, shrubs, grass, trees
