Symbiosis BR 2

A scientist was studying two organisms and determined the relationship between them was parasitism. Which statement must be true to classify the relationship as parasitism?

• One organism benefits while the other organism is harmed.

• A smaller organism lives inside the body of a larger organism.

• One organism feeds on the body fluids of another organism.

• Both organisms are harmed by the relationship.

Scavengers eat the food that is left behind by predators. This relationship is an example of –

• parasitism

• commensalism

• mutualism

• competition

Which relationship is represented when a hyena eats a rodent that it has caught?

• parasitism

• commensalism

• mutualism

• predation

Atlantic puffins (Fratercula arctica) are birds that often nest inside the abandoned burrows of rabbits. This provides protection for the nesting puffins, but does not harm rabbits that are no longer utilizing the burrows. What symbiotic relationship is illustrated by this example?

• predation

• parasitism

• commensalism

• mutualism

Aphids are insects that feed on fluids from the stems of plants. After aphids ingest the plant fluids, they excrete a liquid called honeydew. Some species of ants protect aphids from predators. The ants benefit by feeding on the honeydew produced by the aphids. Which of these terms best describes the relationship between the aphids and the ants?

• mutualism

• predation

• parasitism

• commensalism

Tags

NGSS.MS-LS2-2