7th F&C - Dynamic Ecosystems Pt.2

A close, long-term relationship between two species that usually involves an exchange of food or energy.

• Symbiosis

• Commensalism

• Parasitism

• Mutualism

A symbiotic relationship that benefits one species but does not harm or benefit the other

• Commensalism

• parasitism

• mutualism

• carrying capacity

a symbiotic relationship in which one organism benefits and the other is harmed

• parasitism

• mutualism

• ecological succession

• eutrophication

A Symbiotic relationship in which both organisms benefit.

• Mutualism

• Ecological succession

• climax community

• eutrophication

the process of one ecological community gradually changing into another. Activities such as volcanic eruptions, forest fires, floods, and human activity could result in the formation of new species as well.

• ecological succession

• climax community

• eutrophication

• dynamic equilibrium

Tags

NGSS.MS-LS2-4

a stable community that no longer goes through major ecological changes.

• climax community

• eutrophication

• dynamic equilibrium

• population

the process of a body of water becoming nutrient-rich.

• climax community

• eutrophication

• dynamic equilibrium

• population

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-3

Describes the balance between different parts of the ecosystem

• dynamic equilibrium

• climax community

• commensalism

• mutualism

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-3

12.A

The ocean sunfish is a large, flat fish that spends most of its time in deep water feeding mainly on jellyfish. Sunfish often have many species of copepods, small crustaceans that bury their heads into the soft tissue of the sunfish. Sunfish will swim to the surface of the water and lie sideways allowing seabirds to eat the copepods from their skin. Match the organism to the correct description of how each organism is related to the sunfish.

• Mutualism

• Copepods

• Parasitism

• Jellyfish

• Predation

• Seabirds

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

Match the following types of relationships to their descriptions:

• Parasitism

• One organism benefits at the expense of the other

• Mutualism

• Both organisms are harmed by fighting over a resource

• Competition

• One organism benefits while the other remains neutral

• Commensalism

• Both organisms benefit (help each other)