Interactions Within Ecosystems

a relationship in which one organism benefits but the other is harmed.

• mutualism

• Parasitism

• cooperative

• commensalism

a relationship in which one organism benefits but the other does not benefit from the other organism.

• mutualism

• parasitism

• commensalism

in the relationship both organisms benefit.

• false

• true

Tags

NGSS.MS-LS2-2

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 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-LS2-2

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 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-LS2-2

NGSS.MS-LS2-3

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

All the populations living in an ecosystem at the same time

• carrying capacity

• community

• population

• symbiosis

Organism that condumrs the bodies of dead organisms and wastes produced by living organisms

• detritivore

• consumer

• producer

• cycle