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Introduction to Ecology
Ecology is defined asA. Study of plantsB. Study of animalsC. Study of organisms focusing on energy
transferD. Study of the earth
Ecology is defined asA. Study of plantsB. Study of animalsC. Study of organisms focusing on energy
transferD. Study of the earth
The environment is made up A. Animals and plants onlyB. Abiotic and biotic factorsC. Weather and soil onlyD. People, weather, and soil only
The environment is made up A. Animals and plants onlyB. Abiotic and biotic factorsC. Weather and soil onlyD. People, weather, and soil only
The order of our social order, from largest to smallest isA. Biosphere, ecosystem, population, community, and
organismB. Organism, population, community, ecosystem, and
biosphereC. Community, populations biosphere, ecosystems,
and organismsD. Biosphere, ecosystem, community, population, and
organism
The order of our social order, from largest to smallest isA. Biosphere, ecosystem, population, community, and
organismB. Organism, population, community, ecosystem, and
biosphereC. Community, populations biosphere, ecosystems,
and organismsD. Biosphere, ecosystem, community, population,
and organism
A unicellular organism isA. A single celled, living organismB. Two celled, living organismC. A multicellular living organismD. A part of earth that has survived the glacial
order
A unicellular organism isA. A single celled, living organismB. Two celled, living organismC. A multicellular living organismD. A part of earth that has survived the glacial
order
A group of organisms one species living is the same place at the same time that interbreed isA. A communityB. An ecosystemC. A populationD. A biosphere
A group of organisms one species living is the same place at the same time that interbreed isA. A communityB. An ecosystemC. A populationD. A biosphere
Several interacting populations that inhabit a common environment and are interdependent is aA. PopulationB. CommunityC. BiosphereD. ecosystem
Several interacting populations that inhabit a common environment and are interdependent is aA. PopulationB. CommunityC. BiosphereD. ecosystem
An ecosystem can be defined asA. Communities in a population and the abiotic
factors with which they interactB. Populations in a community and the abiotic
factors with which they interact.C. Communities in a population and the biotic
factors with which they interactD. Populations in a community and the biotic
factors with which they interact.
An ecosystem can be defined asA. Communities in a population and the abiotic
factors with which they interactB. Populations in a community and the abiotic
factors with which they interact.C. Communities in a population and the biotic
factors with which they interactD. Populations in a community and the biotic
factors with which they interact.
The life supporting portions of Earth composed of air, land, fresh water, and salt water as well as being the highest level of organization is a A. PopulationB. CommunityC. BiosphereD. Family
The life supporting portions of Earth composed of air, land, fresh water, and salt water as well as being the highest level of organization is a A. PopulationB. CommunityC. BiosphereD. Family
A ___________ is the role a species plays in a community; its total way of life/A. PopulationB. NicheC. CityD. family
A ___________ is the role a species plays in a community; its total way of life/A. PopulationB. NicheC. CityD. family
What is the definition of a limiting factor?A. The amount of money in a communityB. The number of people in a communityC. The amount of food available in the
populationD. Any biotic or abiotic factor that restrict the
existence of organisms in a specific environment.
What is the definition of a limiting factor?A. The amount of money in a communityB. The number of people in a communityC. The amount of food available in the
populationD. Any biotic or abiotic factor that restrict the
existence of organisms in a specific environment.
An example of a “limiting factor” would be:A. Any biotic organismB. Any abiotic organismC. Any amount of foodD. Any type of car
An example of a “limiting factor” would be:A. Any biotic organismB. Any abiotic organismC. Any amount of foodD. Any type of car
The three types of feeding relationships areA. Producer-consumer, predator-prey, parasite-
hostB. Producer-prey, predator- consumer, parasite-
hostC. Parasite-producer, consumer-host, parasite-
predatorD. Producer-consumer, predator-parasite, prey-
host
The three types of feeding relationships areA. Producer-consumer, predator-prey, parasite-
hostB. Producer-prey, predator- consumer, parasite-
hostC. Parasite-producer, consumer-host, parasite-
predatorD. Producer-consumer, predator-parasite, prey-
host
A producer isA. At the top of the food chainB. At the middle of the food chainC. At the bottom of the food chainD. Not on the food chain at all
A producer isA. At the top of the food chainB. At the middle of the food chainC. At the bottom of the food chainD. Not on the food chain at all
Consumers canA. Only survive by taking in the sun.B. Survive only by using photosynthesisC. Be primary or tertiaryD. Only consume plants
Consumers canA. Only survive by taking in the sun.B. Survive only by using photosynthesisC. Be primary or tertiaryD. Only consume plants
Omnivores A. Eat only meatB. Eat both plants and animalsC. Eat only plantsD. Can be lions
Omnivores A. Eat only meatB. Eat both plants and animalsC. Eat only plantsD. Can be lions
Symbiosis isA. Many species living togetherB. the same species living togetherC. An agreement between the same species to
share foodD. Two species living together
Symbiosis isA. Many species living togetherB. the same species living togetherC. An agreement between the same species to
share foodD. Two species living together
Commensalism is one form of symbiotic relations thatA. Neither species benefits from the relationshipsB. Both species benefits C. One species benefits and the other species is
harmedD. One species benefits and the other is neither
harmed nor helped
Commensalism is one form of symbiotic relations thatA. Neither species benefits from the relationshipsB. Both species benefits C. One species benefits and the other species is
harmedD. One species benefits and the other is neither
harmed nor helped
One type of symbiotic relationships is mutualism whichA. Benefits neither participantB. Benefits both speciesC. One species benefits, the second is not
affectedD. Neither species benefits
One type of symbiotic relationships is mutualism whichA. Benefits neither participantB. Benefits both speciesC. One species benefits, the second is not
affectedD. Neither species benefits
A trophic levelA. Represents a feeding step in the transfer of
energy and matterB. Is only observed in a symbiotic relationshipC. Represents high tide and low tides of the
oceansD. Is determined by the depth of the ocean
A trophic levelA. Represents a feeding step in the transfer of
energy and matterB. Is only observed in a symbiotic relationshipC. Represents high tide and low tides of the
oceansD. Is determined by the depth of the ocean
__________ is transferred upwards but is diminished with each transfer.A. BiomassB. CompostC. EnergyD. Food chain
__________ is transferred upwards but is diminished with each transfer.A. BiomassB. CompostC. EnergyD. Food chain
A food chain is a model that showsA. A complicated design of matter and energy
moving through the ecosystemB. The proper eating diet for a long lifeC. how matter and energy move through an
ecosystemD. The process of food production in the
ecosystem
A food chain is a model that showsA. A complicated design of matter and energy
moving through the ecosystemB. The proper eating diet for a long lifeC. how matter and energy move through an
ecosystemD. The process of food production in the
ecosystem
Different from a food chain, the food web showsA. All possible feeding relationships in a
community at each trophic levelB. The simplicity of a species acquiring foodC. The problems species have in a hostile
environment of obtaining foodD. How different foods are obtained by different
species
Different from a food chain, the food web showsA. All possible feeding relationships in a
community at each trophic levelB. The simplicity of a species acquiring foodC. The problems species have in a hostile
environment of obtaining foodD. How different foods are obtained by different
species
Nitrogen makes up about how much of the air in the atmosphere?A. 3-5%B. 30-50%C. 80-90%D. 78-80%
Nitrogen makes up about how much of the air in the atmosphere?A. 3-5%B. 30-50%C. 80-90%D. 78-80%
Nitrogen fixation A. Makes NH4 become N2
B. Makes NH4 become NH2
C. Makes N2 become NH4
D. Makes N2 become N4
Nitrogen fixation A. Makes NH4 become N2
B. Makes NH4 become NH2
C. Makes N2 become NH4
D. Makes N2 become N4
__________ organisms are one-celled.
• Unicellular organisms are one-celled.
• Which of these statements best describes a niche in an ecosystem? – A. the role of a species in its population – B. the role of a species in its community – C. the way a species uses the resources in its
habitat – D. the way a species interacts with other species
in its habitat
• Which of these statements best describes a niche in an ecosystem? – A. the role of a species in its population – B. the role of a species in its community – C. the way a species uses the resources in its
habitat – D. the way a species interacts with other species
in its habitat
• A spider hides in an orchid flower. It captures and eats insects as they enter the flower. How could this be an example of mutualism? – A. if the spider is also eating part of the flower – B. if the spider’s actions do not affect the orchid
plant – C. if the insects that the spider captures are
harming the flower – D. if the insects that the spider captures are
pollinating the flower
• A spider hides in an orchid flower. It captures and eats insects as they enter the flower. How could this be an example of mutualism? – A. if the spider is also eating part of the flower – B. if the spider’s actions do not affect the orchid
plant – C. if the insects that the spider captures are
harming the flower – D. if the insects that the spider captures are
pollinating the flower
• Why are decomposers an essential part of a healthy ecosystem? – A. Decomposers are a necessary part of the diet of
most consumers. – B. Decomposers convert plant material into a form that
primary consumers can use. – C. Decomposers make resources available to producers
by breaking down waste materials. – D. Decomposers extract energy from sunlight as they
break down plant materials, adding returning energy to the system.
• Why are decomposers an essential part of a healthy ecosystem? – A. Decomposers are a necessary part of the diet of
most consumers. – B. Decomposers convert plant material into a form that
primary consumers can use. – C. Decomposers make resources available to
producers by breaking down waste materials. – D. Decomposers extract energy from sunlight as they
break down plant materials, adding returning energy to the system.
• Which of the following best describes what scientists consider when they study ecology? – A. the interactions of organisms with their
environment – B. the interactions of organisms with weather and
climate – C. the interactions of organisms to reproduce and
produce offspring – D. the interactions of organisms with one another
and the environment
• Which of the following best describes what scientists consider when they study ecology? – A. the interactions of organisms with their
environment – B. the interactions of organisms with weather and
climate – C. the interactions of organisms to reproduce and
produce offspring – D. the interactions of organisms with one another
and the environment
• Which of the following determines where a population can live? – A. whether its needs are met by the biotic factors
in the habitat – B. whether its needs are met by the abiotic factors
in the habitat – C. whether its needs are met by the abiotic and
biotic factors in the habitat – D. whether its needs are met by the other
populations of organisms in the habitat
• Which of the following determines where a population can live? – A. whether its needs are met by the biotic factors
in the habitat – B. whether its needs are met by the abiotic factors
in the habitat – C. whether its needs are met by the abiotic and
biotic factors in the habitat – D. whether its needs are met by the other
populations of organisms in the habitat
• Which of the following is a biotic factor in an ecosystem?
• A. wind• B. tree leaves• C. small rocks• D. light from the sun
• Which of the following is a biotic factor in an ecosystem?
• A. wind• B. tree leaves• C. small rocks• D. light from the sun
• Which of these statements describes a species?• A. A species is a group of organisms that are
closely related.• B. A species is a group of organisms that live in
the same habitat.• C. A species is a group of organisms that live in
an area and interact.• D. A species is a group of organisms that are
closely related and produce fertile offspring.
• Which of these statements describes a species?• A. A species is a group of organisms that are
closely related.• B. A species is a group of organisms that live in
the same habitat.• C. A species is a group of organisms that live in
an area and interact.• D. A species is a group of organisms that are
closely related and produce fertile offspring.
• The water cycle includes• A. photosynthesis, respiration, and
releasing oxygen• B. evaporation, transpiration,
condensation, precipitation• C. nitrogen, photosynthesis, oxygen,
respiration• D. evaporation, transpiration, respiration,
photosynthesis
• The water cycle includes• A. photosynthesis, respiration, and
releasing oxygen• B. evaporation, transpiration,
condensation, precipitation• C. nitrogen, photosynthesis, oxygen,
respiration• D. evaporation, transpiration, respiration,
photosynthesis
• What is the difference between a food chain and a food web?
• What is the difference between a food chain and a food web?
• A food chain includes only one line of social order; a food web includes several lines of social order.
What are the two types of water biomes?
• What are the two types of water biomes?• • a. Freshwater• • b. Saltwater
• How does the environment determine where an organism can survive?
• Explain your answer.
• How does the environment determine where an organism can survive?
• Explain your answer.
• An organism lives where it does because it can survive under the conditions in that environment.
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