symbiosis Quiz 2

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

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

A flea feeds on a mouses' blood to the harming of the mouse.  What type of symbiotic relationship is this?

• commensalism
• mutualism
• parasitism

Mistletoe takes water and nutrients from the spruce tree.  The spruce tree eventually dies.  What type of symbiotic relationship is this?

• commensalism
• parasitism
• mutualism

Remoras are small fish that swim close to or attach themselves to sharks.  Remoras eat small scraps left as the sharks feed and the sharks are unaffected. 

• Competition
• Predation
• Mutualism
• Commensalism

Barnacles create home sites by attaching themselves to whales. Since the barnacle is a filter feeder, it also gets access to more water (and food) due to the relationship. The whale is unaffected.
This is an example of which type of symbiosis?

• Commensalism
• Mutualism
• Parasitism
• Competition

 Hummingbirds feed on nectar from flowers.  The flowers are pollinated by hummingbirds as they move from flower to flower. What type of symbiosis is this?

• commensalism
• mutualism
• parasitism
• predation

Digestive bacteria and humans - Human beings have what are often called “good” bacteria in their digestive systems. This “good” bacteria exists in order to help the human to digest food.

• Mutalism

• Commensalism

• Parasitism