Symbiosis 3

In which type of symbiotic relationship do both species benefit (+,+) ?

• Commensalism

• Parasitism

• Mutualism

• Predation

In which type of symbiotic relationship does one species benefit while the other species is not affected (+, 0)?

• Commensalism

• Parasitism

• Mutualism

• Predation

In which type of symbiotic relationship does one species benefit while the other species is harmed (+,-)?

• Commensalism

• Parasitism

• Mutualism

• Predation

Which symbols best describe mutualism?

• +,+
• +,-
• +,0
• -,0

Which symbols best describe commensalism?

• +,+
• +,-
• +,0
• 0,0

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

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 

Which of the following is NOT a symbiotic relationship?

• Competition

• Commensalism

• Mutualism

• Parasitism

Commensalism is a symbiotic relationship in which what occurs between the organisms?

• both organisms are harmed

• one benefits, the other is unaffected

• one benefits, the other is harmed

• one benefits by eating the other

Define the relationship: humans and mosquitoes

• Parasitism

• Predation

• Commensalism

• Mutualism

• Competition