Symbiosis

A tick is an insect that attaches itself to animals, such as cows, and absorbs blood and nutrients from the cows, eventually causing illness and loss of nutrients. An egret is a bird that lives in the same area as cows and feeds on ticks and other small insects.

What is the type of relationship between the egret and the cow?

• commensalism

• mutualism

• parasitism

• competition

Tags

7-LS2-2

The graph shows the population density of 2 different species over a period of time. Based on the graph, what is the best description of the relationship between the 2 species?

• Species 1 is a competitor of species 2.

• Species 2 is the predator of species 1.

• Species 2 is the prey of species 1.

• Species 1 is the parasite of species 2.

Tags

7-LS2-2

The backs of spider crabs are covered in algae. The algae provides camouflage for the spider crab to help protect it from predators, and the algae gets access to more food that is floating in the water as it moves through the ocean. Which type of relationship do these organisms share?

• predation

• commensalism

• competition

• mutualism

Tags

7-LS2-2

The table shows the interactions between the organisms in 4 groups. Which groups represent a parasitic relationship?

• oxpecker and rhinoceros

• spider crab and alga

• tapeworm and human

Tags

7-LS2-2

The table shows the interactions between the organisms in 4 groups. Which groups represent a mutualistic relationship?

• oxpecker and rhinoceros

• spider crab and alga

• tapeworm and human

• aphid and wheat

Tags

NGSS.MS-LS2-2

Barnacles create home sites by attaching themselves to whales. In this relationship, the whales are neither harmed nor benefited. What type of symbiosis is this relationship?

• parasitism

• commensalism

• mutualism

Tags

NGSS.MS-LS2-2

A cuckoo may lay its eggs in a warbler's nest. The cuckoo's young will displace the warbler's young and end up being raised by the warbler. What type of symbiosis is this relationship?

• Parasitism

• Commensalism

• Mutualism

In a mutualism relationship, both organisms are ---

• benefited.

• unaffected.

• harmed.

In a parasitic relationship, one organism is ______ and the other organism is benefiting.

• benefited

• harmed

• unaffected

Commensalism is where one organism is benefiting and the other organism is ---

• unaffected.

• benefited.

• harmed.

Tags

NGSS.MS-LS2-2