Interactions in an Ecosystem

Barnacles create home sites by attaching themselves to whales. This relationship neither harms nor benefits the whales. 

• parasitism

• commensalism

• mutualism

Tags

NGSS.MS-LS2-2

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. 

• parasitism

• commensalism

• mutualism

Tags

NGSS.MS-LS1-4

Oxpeckers feed on the ticks found on a rhinoceros. The oxpeckers get a meal and the rhinoceros is helped by the removal of the ticks.

• parasitism

• commensalism

• mutualism

Two different populations of birds live in the same area and eat the same types of food. Which most likely describes the relationship between these two populations of birds?

• competition

• mutualism

• parasitism

• predator-prey

Tags

NGSS.MS-LS2-2

A fig tree that provides shelter and fruit that are essential to the survival of numerous other species is an example of

• A keystone species

• An exotic species

• An indicator species

• An endemic species

Tags

NGSS.MS-LS2-3

Two different populations of birds live in the same area and eat the same types of food. Which most likely describes the relationship between these two populations of birds?

• competition

• mutualism

• parasitism

• predator-prey

Tags

NGSS.MS-LS2-2

Mistletoe extracts water and nutrients from a spruce tree. The spruce tree is harmed. 

• parasitism

• commensalism

• mutualism

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

 A flea feeds on a mouse’s blood and harms the mouse.

• parasitism

• commensalism

• mutualism

Tags

NGSS.MS-LS2-4

 Hermit crabs live in shells made and then abandoned by snails. This relationship neither helps nor harms the snails.

• parasitism

• commensalism

• mutualism

Tags

NGSS.MS-LS2-2

Wrasse fish feed on the parasites found on the black sea bass’s body. The wrasse fish get a meal and the black sea bass is helped by the removal of the parasites.

• parasitism

• commensalism

• mutualism

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-4