Interactions

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 mutualism?

• +,+

• +,-

• +,0

• -,0

Which symbols best describe parasitism?

• +, +

• +, -

• +, 0

• -, 0

Tags

NGSS.MS-LS2-2

Which symbols best describe commensalism?

• +,+

• +,-

• +0

• 0,0

A tick and a dog have this type of relationship.

• mutualism

• commensalism

• neutralism

• parasitism

Cattle egrets are birds that forage in fields among cattle. The egrets get easy access to food and the cattle don't care if they are there or not.

• mutualism

• commensalism

• competition

• parasitism

Tags

NGSS.MS-LS2-2

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

• Mutualism 

• Parasitism 

• Commensalism 

Yucca flowers are pollinated by yucca moths. The moths lay their eggs  in the flowers where  the larvae hatch and eat some of the developing seeds. Both species benefit.  

• Mutualism 

• Parasitism 

• Commensalism 

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

Mistletoe extracts water and nutrients from the spruce tree to the tree's detriment (harm). 

• Mutualsim 

• Parasitism 

• Commensalism