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WorksheetsUnit 2 APES
Total questions: 45
Worksheet time: 29mins
Which of the following is NOT considered to be a natural disruption to an ecosystem?
Volcanic eruption
Hurricane
Air pollution
Earthquake
Which ecosystem is the most biodiverse?
Temperate deciduous forest
Tropical rainforest
Boreal forest
Savanna
Which of the following is an example of a keystone species?
Beavers
Elephants
Kudzu vine
Sea otters
Which of the following statements is true?
Biodiversity decreases with increased sunlight
Biodiversity decreases as you move away from the equator
Biodiversity decreases as you decrease in altitude
Biodiversity increases as you go further down in the oceans
What is true about endemic species?
They are more vulnerable to extinction
They are less vulnerable to extinction
Which one of the following is NOT a major threat faced by biodiversity
Habitat Loss
Invasion of privacy
Population growth
Overfishing
Species that are nonnative and harmful to an ecosystem
nonnative species
invasive species
keystone species
indicator species
The variety of genes, species, ecosystems and ecosystem processes
biodiversity
species evenness
species richness
ecology
What are the two major components of the biodiversity index?
species richness
ecosystem diversity
species evenness
genetic diversity
The total number of different species in a given area is called
species richness
evolution
species evenness
phylogeny
A species that can tolerate a very wide range of abiotic or biotic conditions.
generalist
specialist
endemic species
invasive species
A species that lives in a very small area of the world and nowhere else.
niche generalist
keystone species
endemic species
invasive species
Which of the following best explains how environmental stressors, such as wildfires, can affect biodiversity in an ecosystem?
After an environmental stress, a genetic bottleneck may occur, which will increase genetic diversity.
Habitat diversity will increase the available niches if the landscape becomes more uniform after a disturbance.
Ecosystems with more species diversity are more likely to recover after a disturbance than ecosystems with low species diversity.
Smaller populations are less likely to go extinct than larger populations, so the species diversity will remain constant.
Which of the following statements about levels of biodiversity is correct?
Genetic biodiversity is a measure of the total number of genes in a community.
A narrow distribution of habitats leads to an increase in species diversity.
Small isolated islands are areas where biodiversity thrives due to species richness.
A population with high genetic biodiversity is better able to respond to environmental stressors.
This community has
low species richness
high species evenness
an unequal distribution of species
no biodiversity
none of these
Which community would be least vulnerable to the effects of environmental disturbances?
Community 1
Community 2
Community 3
Community 4
What ecosystem services do plants provide?
Plants provide all of these ecological services.
Plants help slow the effects of weathering and erosion.
Plants are used to make many medicines that are used to treat diseases in people and animals.
Plants maintain the balance of gases in the air through photosynthesis, supplying oxygen for humans and animals.
Fruits, fish, and livestock are all examples of what type of ecosystem service?
Economic
Provisioning
Regulating
Cultural
How do biodiversity and stability work together?
The lower the biodiversity the greater the stability of an ecosystem.
The higher the biodiversity, the less stable the ecosystem
The higher the biodiversity, the greater the stability of the ecosystem.
Biodiversity has nothing to do with ecosystem stability.
Which ecosystem below has the HIGHEST biodiversity?
Greater ____________________ means there are more habitats to support different types of organisms.
Ecosystem Diversity
Species Diversity
Genetic Diversity
The greater the ____________________, the more likely a species is to survive changes to their environment
Genetic Diversity
Species Diversity
Ecosystem Diversity
Ecosystems control pests and diseases through the activities of predators and parasites. Birds, bats, flies, wasps, frogs and fungi all act as natural controls.
Provisioning
Regulating
Supporting
Cultural
In many parts of the world natural features such as specific forests, caves or mountains are considered sacred or have a religious meaning.
Provisioning
Regulating
Supporting
Cultural
Ecosystems and biodiversity provide many plants used as traditional medicines as well as providing the raw materials for the pharmaceutical industry.
Provisioning
Regulating
Supporting
Cultural
Natural processes such as nutrient cycling are examples of what type of ecosystem service?
Provisioning
Regulating
Cultural
Supporting
According to the Theory of Island Biogeography which of the following would be true?
Small islands close to the mainland would have more species than a large island near the mainland.
Large islands near the mainland would have less species than a large island far from the mainland.
Small islands far from the mainland would have the same number of species as a small island close to the mainland.
Large islands close to the mainland would have more species than a small island far from the mainland.
A species that can only live in a certain habitat, or one that feeds on a small range of species
background extinction
generalist
specialist
realized niche
fundamental niche
Which of the following leads to a decrease in biodiversity?
introduction of invasive species
prevention of erosion
ecological land use planning
pollution control
Illegal hunting for profit is called
sport hunting.
poaching.
commercial hunting.
subsistence hunting.
Law of the 70's that protects endangered species in the U.S.
Endangered Species Act
CITES
Lacey Act
One Act Plays
Presently, the biggest threat to biodiversity is;
Asteriod strikes, such as what happened 65 million years ago and resulted in the extinction of the dinosaurs.
Human population growth, because as population increases, so does the number of plants and animals it consumes, resulting in a decrease of those organisms.
Habitat destruction, such as cutting down portions of tropical rain forest, which destroys the niches occupied by tropical organisms.
The proliferation of zoos and botanical gardens, causing causing people to care less about preserving species in the wild because they are being cared for those in sanctuaries.
Which of the following international treaties bans the hunting, capture, and sale of threatened or endangered species in 181 countries?
Endangered Species Act (ESA)
The National Marine Fisheries Act
The Convention on International Trade in Endangered Species (CITIES)
National Enviornmental Policy Act (NEPA)
The Marine Mammal Protection Act
The "6th mass extinction" is Anthropogenic which means.
caused by man
caused by an ice age
caused by a meteor storm
caused by a volcano
