Symbiosis and other ecological relationships

Front

What is symbiosis?

Back

Symbiosis is a close ecological relationship between two or more different species, where at least one species benefits.

Front

What are the four main types of symbiotic relationships?

Back

The four main types of symbiotic relationships are mutualism, commensalism, parasitism, and competition.

Tags

NGSS.MS-LS2-2

Front

Define mutualism.

Back

Mutualism is a type of symbiotic relationship where both species benefit from the interaction.

Tags

NGSS.MS-LS2-2

Front

Define commensalism.

Back

Commensalism is a type of symbiotic relationship where one species benefits and the other is neither helped nor harmed.

Front

Define parasitism.

Back

Parasitism is a type of symbiotic relationship where one species benefits at the expense of the other.

Front

What is competition in ecology?

Back

Competition is an ecological relationship where two or more species compete for the same resources, such as food, space, or light.

Front

Give an example of mutualism.

Back

An example of mutualism is the relationship between bees and flowering plants, where bees get nectar and plants get pollinated.

Front

Give an example of commensalism.

Back

An example of commensalism is barnacles attaching to a whale; the barnacles benefit from being carried to food sources, while the whale is not affected.

Front

Give an example of parasitism.

Back

An example of parasitism is a tick feeding on the blood of a mammal.

Front

How does competition control population size?

Back

Competition controls population size by limiting the number of individuals that can survive in a given environment due to resource scarcity.

Tags

NGSS.MS-LS2-1