Ecological Levels and Symbiotic Relationships

Wrasse fish feed on the parasites found on the black sea bass's body (usually in the mouth). This is like dental floss for the fish and both species benefit. This is an example of which type of symbiosis?

• commensalism

• predation

• parasitism

• mutualism

Mistletoe extracts water and nutrients from the spruce tree to the detriment (ill effect) of the spruce. This is an example of which type of symbiosis?

• parasitism

• commensalism

• mutualism

• predation

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

Tags

NGSS.MS-LS2-2

When a mosquito bites you, you are the __________ and the mosquito is the  ____________.

• host, hostess
• parasite, host
• host, parasite
• prey, predator

Which is the simplest level of organization within the environment?

• cell
• organism
• population
• community

Which term refers to the study of organisms and their interactions within the environment?

• biosphere
• niche
• ecology
• habitat

The levels organism, population and community have only which type of factors?

• biotic
• abiotic
• biotic and abiotic

All the alligators in a swamp are an example of a(n) _______________.

• ecosystem 
• community 
• population  
• group

Which of the following is an example of a community?

• All the tiger sharks in the ocean.
• All the oak trees in a forest.
• All the cows on a farm. 
• The plants and animals in a rainforest.