Ecosystems Quiz #2 Review

An example of an ecosystem would be...

• an ocean.

• all of the fish in the ocean.

• all of the great white sharks in the ocean.

• a great white shark.

An example of a community would be..

• A farm

• The animals on the farm.

• The pigs on the farm.

• A pig.

Decomposers get their food by __________.

• making it themselves
• eating live organisms
• using dead organisms
• eating themselves

Tags

NGSS.MS-LS2-3

What do you call it when one species benefits and the other species is not really affected in any way?

• Predation
• Parasitism
• Commensalism
• Mutualism

What do you call it when predators hunt and eat prey?

• Competition
• Predation
• Parasitism
• Commensalism

Which of the following statements is NOT true of consumers?

• They sometimes eat other consumers

• They get energy indirectly from the sun

• They are also called heterotrophs

• They make their own food

Consider the food chain below. What would MOST LIKELY happen if the bass started to disappear because too many of them had been caught during fishing season?

Plants Þ Minnows Þ Bass Þ Bears

• The plant population will increase.

• The number of minnows would decrease.

• The number of bear will increase.

• The number of minnows would increase.

Which of the following is an example of a parasitic relationship?

• Bees transporting pollen from flowers

• Pilot fish swimming under sharks

• Birds eating the insects from the back of a hippopotamus

• Ticks feeding on a dog.

Cowbirds eat insects and as bison wander through the grasslands feeding, they stir up insects. The cowbirds follow the bison, eating insects that are stirred up. The bison is not affected either way. What kind of symbiotic relationship is demonstrated by this relationship?

• Predator-Prey

• Parasitism

• Commensalism

• Mutualism

In a stretch of temperate rain forest in Oregon, a weasel is observed eating a vole. In this area, voles are particularly fond of eating crickets. The crickets in turn consume the various ferns and grasses that grow here.

In this food chain, which organism(s) would represent the tertiary consumer?

• Ferns and grasses

• Weasel

• Vole

• Cricket