Ecological Resources and Interactions

A community consists of all the organisms in an ecosystem that belong to the same species.

• True

• False

All the meerkats that live in a wildlife refuge make up which of the following?

• population
• community
• biosphere
• niche

What is the difference between a population and a community?

• A population is made up of all species in an area. A community is made up only of one species.
• A population is made up of only one species. A community is made up of all species in an area.
• The words mean the same thing.
• A population is made up of all the species and nonliving things in an area. A community is made up of all species in an area.

Living and nonliving parts of an environment together are referred to as a(n)

• community
• population
• ecosystem
• individual

Tags

NGSS.MS-LS2-3

A pond only has enough living space to support 16 fish. Living space is a ___________ factor.

• community
• ecosystem
• limiting
• negative

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NGSS.MS-LS2-1

NGSS.MS-LS2-4

Carrying capacity is the largest number of individuals of one species that an ecosystem can support over time.

• True
• False

What is the effect of the growth of a population in an ecosystem?

• fewer resources for each individual in the population
• a greater amount of resources in the ecosystem
• a decrease in the amount of resources needed by each individual
• an increase in the size of the ecosystem

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Mutualism is any close relationship between different species.

• True
• False

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NGSS.MS-LS2-2

Samantha plants some flowers in a flower bed and then ignores them. Soon weeds grow and the flowers die. The weeds had been able to get enough resources to survive, while the flowers had not. This is an example of _____.

• population size
• competition
• habitat
• community

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

A symbiotic relationship in which one species benefits and the other is not affected is called

• mutualism
• parasitism
• commensalism
• predation