NC Biology EOC Standard 2

A(n)  _______ shows interconnected food chains.

• energy pyramid
• tropic level
• food web
• feeding diagram

Decomposer organisms break down dead organisms, providing energy to carnivores

• true

• false

Tags

NGSS.MS-LS2-3

What is the ultimate source of energy in any food chain?

• the sun

• producers

• consumers

• decomposers

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which organisms can be found at the first, or lowest, trophic level?

• herbivores

• carnivores

• heterotrophs

• autotrophs

Tags

NGSS.MS-LS1-6

Which statement describes an autotroph?

• It is an organism that makes its own food.

• It is an organism that eats other organisms.

• It is an organism that eats decaying matter.

• None of the above.

Which situation is a biotic factor operating within an ecosystem?

• the kind of climate in a given region

• carnivores that eat other animals

• the concentration of hydrogen gas in the air

• the rate of water flow in a body of water

Tags

NGSS.MS-LS2-4

All the nonliving things in an environment are called the ________ factors.

• abiotic

• biotic

• ecological

• inorganic

Why are many farmers encouraged to plant different types of crops on the same land throughout the year?

• It prevents insects from destroying crops

• It provides more food to other countries

• It allows for more genetic variation in plants

• It helps to preserve the quality of the soil

Tags

NGSS.MS-LS2-5

In some ecosystems, wolves have been eliminated due to their threats to humans. How can the reintroduction of wolves benefit the ecosystem?

• It can eliminate weak animals from a prey population, thereby decreasing competition for natural resources

• It can eliminate the most fit animals among the prey population, which will cause an increase in birthrates of the prey

• It can cause the prey population to migrate to other areas, resulting in more fit prey

• It can cause the prey population to better blend in with their environment.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

NGSS.MS-LS2-2

In nature, which type of behavior causes animals to produce aggressive displays and sounds?

• imprinting

• territoriality

• conditioning

• habituation