ReyH

Which of these levels of organization includes all the other levels ?

• community

• ecosystem

• individual

• population

A _____eats secondary consumer.

• decomposer
• tertiary consumer
• primary consumer
• quaternary consumer

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3

_____are organisms that feeds on dead and decaying matters in the ecosystem

• Carnivores
• Producers
• Decomposers
• Herbivores

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

The image shows ______?

• Food web

• Trophic level

• Food chain

• Food chain and Food Web

Tags

NGSS.MS-LS2-3

Nathaniel  is going out with  his cousins to their  uncles’ farm. On the farm is a river  that he likes to fish in. While he is fishing he sees many different species of fishes as well as maple and oak trees, bees  and dragonflies. What Nathaniel  is looking at are  example of what level of organization? 

?

• ecosystem

• organism

• Population

• community

Tags

NGSS.MS-LS2-2

What happens to the amount of available energy as it moves up the trophic levels in a food chain?

• The amount of available energy decreases as it moves up the trophic levels.
• The amount of available energy increases as it moves up the trophic levels.
• The amount of available energy remains constant at all trophic levels.
• Energy is completely transferred to the next trophic level without any loss.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

If the primary consumers population decreases what will happen to the secondary consumers?

• The secondary consumers population will increase.
• The secondary consumers will become extinct.
• The secondary consumers population will likely decrease.
• The secondary consumers will remain unchanged.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4

If the apex predator and tertiary consumer decreases, what will happen to the secondary consumers?

• Secondary consumers will become apex predators.
• The population of secondary consumers will decrease.
• The population of secondary consumers may increase.
• There will be no change in the population of secondary consumers.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

Explain the concept of trophic levels and their significance in an ecosystem.

• Trophic levels describe the physical size of organisms in an ecosystem.
• Trophic levels are crucial for understanding the structure and function of ecosystems, as they illustrate how energy and nutrients move through food chains.
• Trophic levels are irrelevant to energy flow in ecosystems.
• Trophic levels only apply to aquatic ecosystems.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What are the impacts of human activities on trophic levels and food webs?

• Human activities have no effect on trophic levels or food webs.
• Human activities enhance biodiversity and stabilize food webs.
• Human activities only impact terrestrial ecosystems, not aquatic ones.
• Human activities disrupt trophic levels and food webs by causing imbalances, reducing biodiversity, and altering species interactions.

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4

NGSS.MS-LS2-5