Ecosystem Interactions

Which is an example of parasitism?

• cat and mouse
• tadpole and frog
• human and tapeworm
• caterpillar and butterfly

Which term best describes two predators living in the same habitat who feed on the same prey?

• coexistence
• competition
• mutualism

In the ocean, a sea anemone attaches itself to the shell of a hermit crab. The stinging arms of the sea anemone protect the hermit crab, while the movement of the hermit crab brings food to the sea anemone. Which best describes the relationship between the sea anemone and the hermit crab?

• predation

• mutualism

• competition

Dead matter and waste would pile up without which type of organism?

• decomposer
• consumer
• producer

As a dog walks through thick brush, a tick attaches to its leg. Which best describes the relationship between the dog and the tick?

• parasitism
• mutualism
• commensalism

A pride of lions stalks, tackles, and kills an antelope. Which is best being demonstrated?

• predation

• mutualism

• competition

Which best represents the niche of seaweed and algae in a marine ecosystem?

• producers

• consumers

• predators

What kind of relationship is a hawk eating a snake?

• Consumer-producer
• host-parasite
• predator-prey
• producer-consumer

A relationship between two organisms in which one organism benefits and the other is unharmed...

• Mutualism 
• Competition
• Parasitsm 
• Commensalism 

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

• competition

• mutualism

• predation