Competition, Predation, Symbiosis and Mutualism

The tapeworm lives in the digestive tract of a human and absorbs the nutrients from the human’s food. The human has abdominal pain and cannot get appropriate nutrition because of the tapeworm. What type of relationship is this?

• predation

• mutualism

• commensalism

• parasitism

• competition

A pearlfish spends the day inside the alimentary tract, or intestines, of a sea cucumber. The fish emerges from the sea cucumber at night to feed on small crustaceans. The pearlfish gets a safe place to live. The sea cucumber does not gain anything from the relationship, nor is it harmed.

• predation

• mutualism

• commensalism

• parasitism

• competition

The Dodder plant grows on the shrub. The dodder takes water from the shrub and the branches of the dodder pierce the tissues of the shrub. Eventually the shrub will die.

• predation

• mutualism

• commensalism

• parasitism

• competition

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Humans want to build homes in the desert. Desert tortoises want to live in the desert.

• predation

• mutualism

• commensalism

• parasitism

• competition

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS2-1

NGSS.MS-LS2-4

NGSS.MS-LS2-5

Orchids live on trees to get better access to sunlight. They do not harm the trees nor is the tree helped by their presence.

• predation

• mutualism

• commensalism

• parasitism

• competition

a close relationship between two organisms of different species where one benefits and the other is harmed

• predation

• multualism

• commensalism

• parasitism

one organism steals nutrients from the digestive tract of another organism

• predation

• multualism

• commensalism

• parasitism

A wrasse fish feeds on the parasites found on the black sea bass's body. Both species benefit. 

• Mutualism 

• Parasitism 

• Commensalism 

Tags

NGSS.MS-LS2-2

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

A close, long-term relationship in which 2 different organisms live in close association with each other. 

• Carrying Capacity

• Coexistence

• Limiting Factor

• Symbiosis