Ecosystem test review

If there is a drought, what will happen to the lion population in the following food chain?

grass --> zebra --> lion

• They will increase because there will be more zebra.

• They will decrease because they have less food available.

• They will remain the same.

• They will decrease because the sunlight will kill them.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

An animal eats berries and insects. What role does this consumer have?

• herbivore

• omnivore

• carnivore

• decomposer

Which has only biotic factors?

• sunlight, wind, water

• fungi, bacteria, dirt

• moss, algae, leaves

• tree, rocks, clouds

What kind of consumer is a dolphin?

• carnivore

• omnivore

• herbivore

• producer

Which is something that producers DO NOT do for the environment?

• They provide oxygen to the air.

• They provide food to herbivores and omnivores.

• They use photosynthesis to change the sun's energy into useable energy.

• They break down dead things into nutrients.

Which of the following helps return nutrients to the soil?

• fungi

• seaweed

• lion

• fern

Tags

NGSS.MS-LS2-3

Plants use abiotic factors like water and sunlight to change energy called photosynthesis. This best explains what . . .?

• It explains why decomposers are not important.

• It explains why the only thing an ecosystem needs is plants.

• It explains why they are the first link in the food chain.

• It explains why food chains need at least 3 links to work.

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

What is one reason decomposers are important?

• They provide food to other herbivores.

• They provide abiotic things for the atmosphere.

• They provide nutrients for plants so they can grow.

• They change the sun's energy into useable energy.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

Which best describes bacteria?

• decomposer

• producer

• consumer

• herbivore

In the food chain, what will happen to the mice if the grasshoppers decrease?

• Mice will increase.

• Mice will decrease.

• Mice will stay the same.

• Mice will move to another biome.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4