Commensalism

Relationship where one organism benefits and the other is neither harmed nor helped

• Commensalism

• Parasitism

• Mutualism

• Competition

A relationship between two organisms in which one organism benefits and the other is unharmed...

• Mutualism 

• Competition

• Parasitsm 

• Commensalism 

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

Tags

NGSS.MS-LS2-2

What type of symbiosis?  Skunks often live in burrows that have been dug and abandoned by woodchucks.  

• commensalism

• mutualism

• parasitism

• predation

Which of the following best describes commensalism?

• A relationship beneficial to both organisms involved

• A relationship harmful to both organisms involved

• A relationship beneficial to one organism and harmful to the other

• A relationship beneficial to one organism and neutral to the other

Tags

NGSS.MS-LS2-2

Some species of barnacles attach themselves to sea turtles or whales. As the whales or sea turtles travel, the barnacles gain access to food in nutrient-rich waters. Their host neither benefits nor is harmed by its riders.

• Mutualism

• Parasitism

• Commensalism

How does commensalism differ from parasitism?

• In commensalism, both species benefit; in parasitism, one benefits and the other is harmed.

• In commensalism, one species benefits and the other is unaffected; in parasitism, one benefits and the other is harmed.

• In commensalism, both species are harmed; in parasitism, both benefit.

• In commensalism, one species benefits and the other is harmed; in parasitism, both are harmed.

Tags

DOK Level 1: Recall

Which of the following is an example of commensalism?

• A tick feeding on a deer

• Barnacles attaching to a whale

• A wolf hunting a rabbit

• A bee pollinating a flower

Tags

DOK Level 1: Recall

Hermit crabs live in shells that snails don't use anymore. The hermit crab gets a nice free home. This is an example of (a)   .

• mutualism

• commensalism

• parasitism

Bromeliads and trees are in a commensal relationship because: (choose 2)

• the tree provides shelter and an environment for the bromeliad

• the tree is harmed from the bromeliad taking food from it

• the tree is not harmed or helped by the bromeliad

• the tree takes nutrients from the bromeliad

Tags

NGSS.MS-LS2-2