Ecological Levels and Relationships

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.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

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.

Tags

NGSS.MS-LS2-4

The diagram shows a:

• trophic pyramid

• biochemical cycle

• community pyramid

• ecosystem

Tags

NGSS.MS-LS2-3

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

• community

• ecosystem

• organism

• population

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

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

• silver

• fungus

• mud

• kitten

Tags

NGSS.MS-ESS2-4

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

Tags

NGSS.MS-LS2-2

Which is NOT one of the three broad trophic levels?

• Producer

• Consumer

• Decomposer

• Lender

The human intestine provides food for bacteria that live inside the digestive system. The beneficial bacteria living in the intestine of humans help digest cellulose from plants which humans don’t have the enzymes to break down. This is an example of --

• commensalism

• parasitism

• mutualism

• predation

Tags

NGSS.MS-LS2-3

Which of the following is an example of a primary consumer in a food web?

• Grass

• Rabbit

• Hawk

• Mushroom

Tags

NGSS.MS-LS2-3