Ecosystems Review

What is an ecosystem?

• A community of living organisms interacting with their environment

• A single animal living in isolation

• A group of plants in a garden

• A collection of rocks and minerals

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-1

What does the term "biotic" refer to in an ecosystem?

• Nonliving parts of an ecosystem

• Living parts of an ecosystem

• The climate of an ecosystem

• The soil composition

What is the definition of "abiotic" in an ecosystem?

• Living parts of an ecosystem

• Nonliving parts of an ecosystem

• The food chain

• The water cycle

What is a habitat?

• An organism's role in an ecosystem

• Natural home of an organism

• A type of food chain

• A weather pattern

What does "niche" mean in the context of an ecosystem?

• A type of plant

• An organism's role in an ecosystem

• A water source

• A type of soil

What defines a population in an ecological context?

• All the different populations in an area

• The number of individuals of the same species in an area

• A single living organism

• A group of ecosystems

What is the definition of carrying capacity?

• The maximum number of individuals of a species that an environment can support for the long term.

• The minimum number of individuals needed for a species to survive.

• The average number of individuals in a population over time.

• The number of individuals that can migrate to a new environment.

What limits the carrying capacity of an environment?

• Unlimited resources

• Limiting factors

• Population growth

• Climate change

Tags

NGSS.MS-LS2-1

What term describes the maximum number of organisms an environment can support?

• Lag phase

• Carrying capacity

• Exponential growth

• Deceleration phase

What would likely happen to the population of bivalves if the population of Sea Ducks decreases steadily over several years?

• The population of bivalves would increase.

• The population of bivalves would decrease.

• The population of bivalves would remain the same.

• The population of bivalves would become extinct.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4