WorksheetsEcology Practice Test
Total questions: 52
Worksheet time: 45mins
The number and variety of different species in an area
Biodiversity
Keystone species
Extinction
Invasive species
A species that influences the survival of many other species in an ecosystem
Biodiversity
Keystone species
Extinction
Invasive species
The disappearance of all members of a species from Earth
Biodiversity
Keystone species
Extinction
Invasive species
Non-native species
Biodiversity
Keystone species
Extinction
Invasive species
The benefits humans receive from ecosystems.
Ecosystem Services
Natural Resource
Conservation
Sustainability
Anything naturally occurring in the environment that humans use
Ecosystem Services
Natural Resource
Conservation
Sustainability
The practice of using less of a resource so that it can last longer.
Ecosystem Services
Natural Resource
Conservation
Sustainability
The ability of an ecosystem to maintain biodiversity and production indefinitely
Ecosystem Services
Natural Resource
Conservation
Sustainability
The first species to populate an area during succession
Pioneer species
Keystone species
Extinction
Invasive species
The series of predictable changes that occur in a community over time
Succession
Biodiversity
Ecology
Biodiversity
The study of how organisms interact with each other and their environment
Succession
Biodiversity
Ecology
Biodiversity
A type of symbiosis between 2 species in which one species benefits and the other species is neither helped or harmed
Symbiosis
Mutualism
Commensalism
Parasitism
A type of symbiosis in which both species benefit from living together
Symbiosis
Mutualism
Commensalism
Parasitism
A type of symbiosis in which one organism lives with, on, or in a host and harms it
Symbiosis
Mutualism
Commensalism
Parasitism
Any relationship in which 2 species live closely together and that benefits at least one of the species.
Symbiosis
Mutualism
Commensalism
Parasitism
An interaction in which one organism kills another for food or nutrients
Predation
Prey
Competition
Niche
How an organism makes its living and interacts with the biotic and abiotic factors in its habitat
Predation
Prey
Competition
Niche
The struggle between organisms to survive as they attempt to use the same limited resources in the same place at the same time
Predation
Prey
Competition
Niche
An animal that is hunted and killed by another for food
Predation
Prey
Competition
Niche
What is an invasive species?
A species that is native to the land
A species that is introduced to a new environment and typically causes damage to their new ecosystem.
A species that is in an ecosystem as a result of primary succession
Why do the populations of invasive species grow so quickly?
They are prey to many animals.
They have no food in their new ecosystem.
Invasive species have no natural predators.
How do invasive species travel?
They are pets released by people.
They travel via boat, latching themselves onto the hull and traveling for thousands of miles
They are brought in by people traveling or importing goods.
All of the above
Invasive species can have a major negative impact on the ecosystem
true
false
How can we try to help fix the invasive species problem?
Make sure you’re not taking any native plant, animal, or bug with you when you travel
Do not transport plants from other places, even as decoration.
Do not release pet animals into the wild.
All of the above.
Abiotic is non-living
A rain forest ecosystem is characterized by high biodiversity and a warm/rainy climate. How might this impact the ecosystem's sustainability if the ecosystem is damaged by a catastrophic event?
The ecosystem, because it has few plant and animal species, will experience low sustainability, not allowing it to recover
The ecosystem, because it has many plant and animal species, will experience high sustainability, allowing it to recover
Biodiversity does not have an impact on an ecosystem's sustainability
What are the levels of organization?
Individual
population
community
ecosystem
biome
biosphere
Individual
population
community
biome
ecosystem
biosphere
A series of changes in the species composition of a community over time
Ecological Succession
Ecology
Environment
Climax Community
A type of biological community defined by its predominant plants, animals, and environmental conditions
Bio
Biodiversity
Biology
Biome
A relatively stable state of succession or the end product of succession
Climax community
Ecology
Ecosystem
Biology
A system comprising all the biotic and abiotic factors in an area and all the interactions among them
Ecology
Ecosystem
Economy
Economic
The place where an organism naturally lives and grows
Home
Environment
Habitat
Woods
A group of interacting individuals of the same species located in the same area
Species
Natural Selection
Habitat
Population
An organism that can make its own food by using energy from its surroundings.
Producer
Consumer
Decomposer
An organism that gets energy by breaking down the remains of dead organisms or animal wastes and consuming or absorbing the nutrients.
Producer
Consumer
Decomposer
An organism that eats other organisms or organic matter.
Producer
Consumer
Decomposer
Occurs when individuals join a population.
Ecosystem
Adaptation
Immigration
Emigration
Occurs when individuals leave a population.
Ecosystem
Adaptation
Immigration
Emigration
An environmental factor that prevents an organism or population from reaching its full potential of size or activity.
Carrying Capacity
Limiting Factor
Competition
Cooperation
Describes when a community starts to grow in an area with no soil.
Ecological Succession
Primary Succession
Secondary Succession
Pioneer (Primary) Species
Describes when a community begins growing in an area that already has soil, usually due to natural disasters or farming.
Climax Species
Primary Succession
Secondary Succession
Pioneer (Primary) Species
Energy cannot be created or destroyed. Energy changes form.
Ecology
Law of Conservation of Energy
Law of Conservation of Matter
Ecosystem
Changes to abiotic factors in an environment can impact biotic factors. Which statement is the BEST example of this situation?
Heavy rainfall increases soil erosion.
Melting glaciers cause sea levels to rise.
Cold temperatures cause rocks to weather.
Drought conditions increase competition among consumers.
A pride of lions stalks, tackles, and kills an antelope. Which is best being demonstrated?
predation
mutualism
cooperation
Which best describes mutualism?
Ticks live and feed on dogs and other animals’ blood to survive.
Mushrooms send out long, underground structures which allow them to grow in other areas.
Ants attack animals that try to feed on the acacia tree, and the ants feed on the nectar of the tree.
Many different organisms live in Amanda’s garden. The diagram shows a simple food web of some of the organisms in her garden. Predation helps maintain the stability of an ecosystem. Which statement BEST describes how this garden ecosystem can benefit from the presence of snakes?
The snakes provide an energy source for the moles.
The snakes consume the mice best adapted to their environment.
The snakes eat moles, which allows the population of mice to increase.
The snakes keep the mice from overpopulating, which could deplete plant resources.
Significant destruction of a forest habitat will increase which gas in the atmosphere?
CO2 (carbon dioxide)
NO2 (nitrogen dioxide)
O2 (oxygen gas)
N2 (nitrogen gas)
What is the main source of energy for the water cycle?
the Sun
fossil fuels
clouds
the ocean
In any ecosystem, organisms interact with biotic and abiotic parts of the environment. As a result of all of the interactions, the matter within the system is
produced when plants grow.
recycled when organisms die.
lost when animals and plants die.
formed when new animals are born.
What is secondary succession?
The ecological succession that occurs after the initial succession has been disrupted and some plants and animals still exist
The first organisms that colonize barren environments
The role and space of a species within an ecosystem
The non-living components of an ecosystem
