Do NOW: Symbiosis Concept Check

Cattle egrets forage (feed) in fields among cattle. The egret gets easy access to flying insects stirred up by the cattle, and the cattle don't care if they are there or not.

• mutualism
• commensalism
• competition
• parasitism

What type of symbiosis?  Hummingbirds feed on nectar from flowers.  The flowers are pollinated by hummingbirds as they move from flower to flower.

• commensalism
• mutualism
• parasitism
• predation

Which symbols best describe parasitism?

• +,+
• +,-
• +,0
• -,0

Aphids are tiny insects that live on and eat the leaves of plants, removing vital nutrients from the plants.

• Predation

• Parasitism

• Commensalism

• Mutualism

Barnacles create home sites by attaching themselves to whales. This neither harms nor benefits the whales.  What kind of relationship is this?

• Mutualism 
• Parasitism 
• Commensalism 

Mockingbirds will push the eggs out of a blue bird's nest and use the nest for it's own babies illustrating...

• commensalism

• parasitism

• mutualism

• predation

Which of he following interactions demonstrates a PARASITIC relationship?

• A mosquito sucking blood from a warm blooded animal.
• A group of baby otters floating together to help warm each other in the cold waters.
• Many fish swimming together to protect each other from predators.
• Two hyenas fighting over a female to mate with.

Lichens are close associations of fungi and algae. The fungi hold the water supply and the algae perform photosynthesis to manufacture carbohydrates for both organisms.

• mutualism

• commensalism

• parasitism

The close relationship between two different species in an ecosystem

• Biosphere

• Ecology

• Symbiosis

• Environment

A symbiotic relationship where one species obtains food or benefits from another species without benefitting or harming the other.

• Commensalism

• Mutualism

• Competition

• Parasitism