Ecological Levels, Ecological Relationships and Food Webs

Which sentence best describes how energy flows through this pyramid?

• Energy is transferred down each level of the energy pyramid.

• The energy lost at each level is consumed by organisms in the top level.

• The organisms at the bottom level provide energy directly to organisms in all the other levels.

• Energy is transferred from organisms in one level to those in the level above.

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This graph shows that:

• a common adaptation in both predator and prey is camouflage.

• predator-prey relationships account for most energy transfers in food chains and food webs.

• a predator-prey relationship tends to keep the populations of both species in balance.

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If the size of the space represents the size of the group. What would be level 3?

• community

• ecosystem

• organism

• population

How do decomposers help the environment

• make their own food

• they consume living things

• break down organic material

• they eat the bad plants

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NGSS.MS-LS2-3

A bird builds a nest in a hole in the trunk of a tree. It is protected from the rain and predators. This does not help or harm the tree. This is an example of:

• Predation

• Parasitism

• Commensalism

• Mutualism

Autotrophs _____ food.

• make their own

• eat other things for

• consume

• decompose

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Which of the following responses would be correctly placed in the gray area of the Venn Diagram?

• silver

• fungus

• mud

• kitten

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Which are types of consumers? Click all that apply.

• omnivore

• photoautotroph

• herbivore

• carnivore

• detritivore

The diagram shows a:

• trophic pyramid

• biochemical cycle

• community pyramid

• ecosystem

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NGSS.MS-LS2-3

The Cattle Egret forages in pastures and fields among livestock such as cattle and horses feeding on the insects stirred up by the movement of the grazing animals. The cows and horses are not bothered by the cattle egrets. This is an example of –

• commensalism

• mutualism

• parasitism

• predation

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