MCU2L3E2+3

The close long term relationship between two species within an ecosystem is called

• mutualism

• commensalism

• parasitism

• symbiosis

A symbiotic relationship in which both organisms benefit is known as...

• mutualism

• commensalism

• parasitism

• symbiosis

A symbiotic relationship in which one organism benefits and the other is unaffected or unharmed is known as...

• mutualism

• commensalism

• parasitism

• symbiosis

A symbiotic relationship in which one organism benefits and the other is harmed or even killed is known as...

• mutualism

• commensalism

• parasitism

• symbiosis

Algae live in the coral. The algae go through photosynthesis to make food. After taking what it needs, the algae produces a little extra sugar/food for the coral. This is an example of what type of symbiosis?

• mutualism

• commensalism

• parasitism

• symbiosis

Algae live in the coral. The algae go through photosynthesis to make food. After taking what it needs, the algae produces a little extra sugar/food for the coral. How does the algae benefit? Check all that apply.

• free ride

• protection from predators

• home/place to live

• free food

Algae live in the coral. The algae go through photosynthesis to make food. After taking what it needs, the algae produces a little extra sugar/food for the coral. How does the coral benefit? Check all that apply.

• free ride

• protection from predators

• home/place to live

• free food

When two or more individuals, or populations, try to use the same limited resource that is known as ___________.

• symbiosis

• competition

• mutualism

• parasitism

What are resources that population might compete for in an ecosystem? Check all that apply.

• food/water

• space

• mates

• shelter

• sun