Ecosystem and Food Web - Practice Quiz

List at least three limiting factors that would negatively affect the squirrel population. (Look/click on the food web!)

• amount of seeds/treenuts available

• amount of coyotes

• amount of bobcats

• weather change in another ecosystem

Tags

NGSS.MS-LS2-1

What would be two consequence to the food web if the groundhog population dropped severely due to habitat destruction? (Look closely/click on the picture of the food web!)

• Increased plant population due to fewer groundhogs eating them.

• Decrease in predator population that relies on groundhogs for food (coyotes, bobcats & vultures).

• No significant impact on the food web.

• Increase in the population of other herbivores that are part of the ecosystem.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Which organism in this food web can be a part of two different trophic levels? (Look closely/click on the picture of the food web!)

• the grass that is both a producer and a consumer making it an omnivore

• the Blue Jay bird because it eats seeds (making it a primary consumer) and also eats worms grasshoppers (making it a secondary consumer)

• A decomposer (a worm) that is also a producer that likes to produce other plants (making it a producer)

• The coyote because it consumes squirrels and ground hogs making it a carnivore

Tags

NGSS.MS-LS2-3

Which organisms in this food web are tertiary consumers (3rd level)? (Look/click on the picture of the chart!)

• lion, grass, and shrub

• vulture, coyote, and bobcat

• shrub, deer, bobcat

• blue jay, grasshopper, and seeds/treenuts

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

How could you increase the environment’s carrying capacity for the Blue Jay bird? (Look closely/click on the picture of the food web!)

• By providing more food resources

• By reducing the number of predators

• By increasing the nesting sites (habitat)

• All of the above

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

NGSS.MS-LS2-5

Which of the following are ways that humans could negatively impact this ecosystem?

• By introducing invasive species.

• By removing the producers (ex., deforestation, building on the land)

• By removing consumers (ex., overhunting)

• By conserving the natural habitat

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS2-1

NGSS.MS-LS2-4

In a grasslands ecosystem, lions are top consumers (tertiary) that eat antelope. Antelope feed on the grasses that grow in this ecosystem. What impact would the sudden disappearance of lions due to overhunting most likely have on this ecosystem?

• More antelopes would eat the grass

• The grasses would grow larger

• Antelopes would start to eat each other

• The climate would grow increasingly larger

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

Soil organisms, such as fungi, worms and bacteria are all parts of a woodland ecosystem. What best describes the role of these organisms in the woodland ecosystem?

• Primary producers

• Primary consumers

• Secondary consumer

• Decomposers

Tags

NGSS.MS-LS2-3

Which of the following is considered a biotic component?

• Water

• Temperature

• Your Friend

• A Rock

All of the communities, ecosystems, biotic and abiotic components make up this level of ecology:

• species

• population

• ecosystem

• biosphere

Tags

NGSS.MS-LS2-2