Energy Flow in Ecosystems

In this food web, a ___ is a primary consumer and a ___ is a secondary consumer.

• rabbit, snake

• grass, mouse

• rabbit, wildflower

• snake, mouse

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3

In this aquatic food web, which organism(s) eats the squid?

• Seal and seagull

• Blue whale

• Seagull and krill

• It has no predators

Tags

NGSS.MS-LS2-2

In this food web, how many different organisms feed on the producer?

• 2

• 3

• 4

• 5

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3

If the snake population decreased, which populations would increase as a result?

• Birds and Frogs

• Hawks and Frogs

• Birds and Hawks

• Frogs and Butterflies

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

Which is an apex predator in this food web?

• Hawk

• Snake

• Frog

• Bird

Tags

NGSS.MS-LS2-2

_______ are organisms that eat dead organisms.

• Omnivores

• Detritivores

• Carnivores

• Herbivores

Tags

NGSS.MS-LS2-3

A ______ species is a species on which other species in an ecosystem largely depend, and if it were removed, the ecosystem would change drastically.

• Keystone

• Apex

• Primary

• Endangered

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-4

_____ means an organism that can make its own food and _____ means an organism that has to consume other organisms to gain nutrients and energy.

• Autotroph, Heterotroph

• Heterotroph, Autotroph

_________ is the largest number of individuals of a population that an environment can support.

• Carrying Capacity

• Biodiversity

• Limiting Factor

• Ecology

Tags

NGSS.MS-LS2-1

When energy is passed in an ecosystem from one trophic level to the next, only ___ percent of the energy will be passed on.

• 1

• 10

• 100

• 50

Tags

NGSS.MS-LS2-3