Interactions within Ecosystems

What does the term "carrying capacity" refer to in an ecosystem?

• The speed at which an ecosystem recovers from disturbances

• The largest number of individuals of one species that an ecosystem can support over time

• The total area of an ecosystem

• The number of different species in an ecosystem

Tags

NGSS.MS-LS2-4

What is the role of a "consumer" in an ecosystem?

• An organism that produces its own food using sunlight

• An organism that decomposes dead organisms

• An organism that cannot make its own food and relies on others for nutrition

• An organism that regulates the population of other species

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-5

Which term describes a close, long-term relationship between two species that usually involves an exchange of food or energy?

• Predation

• Symbiosis

• Niche

• Habitat

What does "niche" mean in an ecological context?

• The physical space occupied by an organism

• The role of an organism in its ecosystem, including its interactions with biotic and abiotic factors

• A type of consumer that only eats plants

• The migration pattern of a species

Tags

NGSS.MS-LS2-2

What is a "food web"?

• A sequence of organisms each dependent on the next as a source of food

• A single pathway of feeding relationships among organisms in an ecosystem that results in energy transfer

• A model of energy transfer that shows how food chains in a community are interconnected

• A graphical representation of water flow in an ecosystem

Tags

NGSS.MS-LS2-3

What does the term "nonrenewable resource" refer to?

• A resource that can be replenished as quickly as it is used

• A natural resource that is used up faster than it can be replaced by natural processes

• A resource that never depletes

• A resource that is artificially created

Which of the following best defines "renewable resource"?

• A resource that is available in unlimited quantities

• A resource that is used up faster than it can be replaced

• A resource that can be replenished by natural processes at least as quickly as it is used

• A resource that causes pollution

What does "resource depletion" mean?

• The discovery of a new resource

• The sustainable use of resources

• The exhaustion of one or more resources in an area

• The increase in resource availability

Tags

NGSS.MS-ESS3-4

What does it mean to "enforce" something?

• To ignore or overlook

• To carry out effectively

• To legislate new laws

• To request politely

Which organisms will you find the most of in an ecosystem. They use an outside energy source, such as the Sun, and produces its own food.

• Consumer

• Producer

• Decomposer

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6