U1L3E1: Disturbances in Ecosystems

A disturbance to one species in a community may lead to changes in all parts of the community.

• True

• False

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-2

The greater the number of species in an ecosystem, the more stable it is.

• True

• False

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

Human activities have caused ecological disturbances in the biosphere.

• True

• False

Tags

NGSS.MS-LS2-4

NGSS.MS-ESS3-4

If there is a moderate disturbance in an ecosystem. Population numbers may vary. However, the ecosystem may return to its original status.

• True

• False

Ecosystems are not affected by minor disturbances.

• True

• False

Resources are not affected by extreme changes to population size in an ecosystem.

• True

• False

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-1

Ecosystems never change.

• True

• False

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-2

NGSS.MS-LS2-3

NGSS.MS-LS4-1

Humans are part of the ecosystem and therefore impact it.  Which of the following events in an ecosystem may produce a negative effect?

• preventing deer from depleting food resources
• restoring a natural habitat
• wildlife rangers minimizing disturbances
• a lumber company clearing a forest

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

What is a complex web of relationships and interactions among organisms and their environment?

• ecosystem

• biome

• biosphere

• community

Tags

NGSS.MS-LS2-2

What is a change brought about by a physical, chemical, or biological agent that impacts population size or community structure?

• resistance

• stability

• disturbance

• resilience

Tags

NGSS.MS-LS2-4