ecosystems review

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-LS2-3

NGSS.MS-LS2-4

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

• Seal and seagull

• Blue whale

• Seagull and krill

• It has no predators

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

• 2

• 3

• 4

• 5

Tags

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

NGSS.MS-LS2-3

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

• Carrying Capacity

• Biodiversity

• Limiting Factor

• Ecology

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-LS1-6

NGSS.MS-LS2-3

Which of the following is NOT an example of a limiting factor?

• Diseases

• Predators

• Trophic Level

• Available Shelter

Tags

NGSS.MS-LS2-1

Which statement about the graph is true?

• When the wolf population begins to increase, the rabbit population begins to decrease

• When the wolf population begins to increase, the rabbit population also begins to increase

• When the rabbit population is at it highest, the wolf population is also at its highest

• When the rabbit population is at it lowest, the wolf population is also at its lowest

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-3

NGSS.MS-LS2-4

When a population nears its carrying capacity, resources become limited. Population growth slows and ______.

• deaths outnumber births

• the birth rate and death rate are equal

• the birth rate increases

• the death rate increases

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4