Symbiosis (Relationships) Review

Bacteria in the intestines obtain nutrients from the gut and produce vitamins for humans. This relationship is-

• mutualism

• commensalism

• parasitism

• predation

Fill in the blank.

Since the birds shown feed on different organisms, ___________ will be reduced.

• competition

• reproduction

• lives

• living space

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Remora fish attach to sharks for a free ride and the fish eat scraps from the shark because sharks are sloppy eaters. This relationship is-

• mutualism

• commensalism

• parasitism

• predation

Tags

NGSS.MS-LS2-2

Bees pollinate plants as they get nectar. This relationship is-

• mutualism

• commensalism

• parasitism

• predation

Tags

NGSS.MS-LS2-2

Green algae grow on the backs of spider crabs helping the crab camouflage and the crabs protect the algae from predators. This relationship is-

• mutualism

• commensalism

• parasitism

• predation

The relationship shown in the picture is-

• mutualism

• commensalism

• parasitism

• predation

Nitrogen-fixing bacteria obtain nutrients from trees and use those nutrients to supply the tree with nitrogen. This relationship is-

• mutualism

• commensalism

• parasitism

• predation

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Fill in the blank.

Animals using the same resources (food, shelter) are _________ with each other?

• competing

• socializing

• nurturing

• reproducing

Tags

NGSS.MS-LS2-1

What resource would the plants in a rain forest be in competition for?

• food

• water

• sunlight

• shelter

Tags

NGSS.MS-LS2-1

Ants protect the plant from other predators and the plant provides the ants with nutrients. This type of relationship is-

• mutualism

• commensalism

• parasitism

• predation

Tags

NGSS.MS-LS2-2