Symbiosis and Competition 2

Which term belongs in area A?

• Mutualism

• Prey

• Parasitism

• Predation

Tags

NGSS.MS-LS2-2

Which phrase belongs in area B?

• protozoa helping termites digest food

• ticks feeding on a deer

• nitrogen-fixing bacteria in plant roots

• orchids growing on tree trunks

Tags

NGSS.MS-LS2-2

Which term belongs in area C?

• Mutualism

• Competition

• Parasitism

• Neutralism

The ecological niches of three bird species are shown in the diagram to the right. What is the advantage of each bird species having a different niche?

• Predators are less likely to feed on birds in a variety of locations.

• More abiotic resources are available for each bird.

• As more birds feed higher in the tree, available energy increases.

• There is less competition for food.

Tags

NGSS.MS-LS2-1

In a forest community, a shelf fungus and a slug live on the side of a decaying tree trunk. The fungus digests and absorbs materials from the tree, while the slug eats algae growing on the outside of the trunk. These organisms do not compete with one another because they occupy

• the same habitat, but different niches

• the same niche and the same habitat

• the same niche, but different habitats

• different habitats and different niches

Tags

NGSS.MS-LS2-2

Imported animal species often disrupt an ecosystem because in their new environment, they will most likely

• eliminate the genetic variation of plants

• have no natural enemies

• increase the number of mutations animals

• be unable to produce offspring

Tags

NGSS.MS-LS2-4

In certain ocean ecosystems, moray eels have microorganisms that could cause harm removed by shrimp that feed on the microorganisms. The relationship between the moray eels and the shrimp would best be classified as -

• Parasitism

• Mutualism

• Competition

• Commensalism

Certain gastropods, like snails, produce hard shells for protection. After the gastropods die, these shells are left behind when the soft tissue is decomposed. Hermit crabs are able to use the empty shells as shelter and protection for themselves. The relationship between gastropods and hermit crabs is best described as –

• Parasitism

• Mutualism

• Predation

• Commensalism

Tags

NGSS.MS-LS2-2

When a non-native species is introduced into an ecosystem, it often has no natural enemies to keep its population in check. Because of this lack of predation, non-native species are able to do which of the following?

• Prevent food from ever being limited

• Create hybrid offspring with other species

• Outcompete native species for resources

• Keep parasites out of the population

Tags

NGSS.HS-LS2-6

NGSS.HS-LS4-2

NGSS.HS-LS4-5

A bird builds a nest in a tree without affecting the tree

• Mutualism

• Commenalistic

• Parasitio

• Predatory