12A/12C

A tapeworm lives in the intestines of a dog. It absorbs food the dog has eaten and grows larger in the process. The dog becomes weaker from malnutrition. What type of symbiotic relationship is this?

• mutualism
• commensalism
• parasitism
• predation

The flower of the yucca plant provides the only location where the yucca moth can lay her eggs. In the process, the moth pollinates the yucca flower. What type of symbiotic relationship is this?

• mutualism
• commensalism
• parasitism
• predation

Tags

NGSS.MS-LS1-4

Cleaner shrimp living in the ocean eat ectoparasites (parasites on the outer surface of the animal) off of fish. What type of symbiotic relationship is this?

• mutualism
• commensalism
• parasitism
• predation

Tags

NGSS.MS-LS2-2

Bacteria that live on the surface of our teeth require sugar from our food to survive. A by-product of their metabolism (body processes) decays the enamel of teeth. What type of symbiotic relationship is this?

• mutualism
• commensalism
• parasitism
• predation

Bass found in warm water lakes of Colorado eat gizzard shad, a small fish grown and raised by the Colorado Division of Wildlife. What type of symbiotic relationship is this?

• mutualism
• commensalism
• parasitism
• predation

NItrogen-fixing bacteria live in the roots of some plants. They provide nitrogen in a form the plants need and obtain a "home" and nourishment from the plants. What type of symbiotic relationship is this?

• mutualism
• commensalism
• parasitism
• predation

A mite lives in the base of the eyelashes of people who use mascara. It feeds on the mascara; it does not seem to harm people. What type of symbiotic relationship is this?

• mutualism
• commensalism
• parasitism
• predation

Tags

NGSS.HS-LS2-6

Ostriches and gazelles eat together.  They both watch for predators and danger.  Since they see things differently, they each can identify threats the other animal may not see.  Both species are benefited.  

• mutualism
• commensalism
• predation
• parasitism

A bison walks through the grass, insects fly up and are seen and eaten by egrets.  This neither harms nor helps the bison, but it is easier for the egrets to get food.

• mutualism
• parasitsm
• commensalism
• competition

In this food web, the grasshopper and the mouse have this relationship:

• mutualism
• commensalism
• competition
• predation