Populations, Ecosystems, Energy Flow

In the food chain below, which is the producer?

grass --> mouse --> snake --> hawk

• grass

• mouse

• snake

• hawk

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which is the primary consumer in this food chain?

• rabbit

• grass

• snake

• hawk

Tags

NGSS.MS-LS2-3

Which of the following describes an interconnection of food chains in an ecosystem?

• Food chain

• Food web

• Energy pyramid

• Producer web

Tags

NGSS.MS-LS2-3

Which organism is the primary consumer?

• Phytoplankton

• Gulls and terms

• osprey

• herbivorous duck

Tags

NGSS.MS-LS2-3

What would happen to the organisms in the food web below if the number of phytoplankton and vegetation decreased?

• Only the small fish would be affected

• Only the osprey would be affected

• The small fish and wading birds would be affected

• The entire food web would be affected

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which statement BEST explains the flow of energy as it moves through the different levels?

• Energy decreases as it is being used by each organism.

• Energy increases as it is gained from the environment.

• Energy is unavailable because it is used up by the organisms at Level 1.

• Energy amount stays the same as it is passed along by organisms.

Tags

NGSS.MS-LS2-3

Dead matter and waste would pile up without which type of organism?

• decomposer

• consumer

• producer

Tags

NGSS.MS-LS2-3

The nonliving parts of an ecosystem are called __________ factors.

• abiotic

• biotic

• diverse

• living

Tags

NGSS.MS-LS2-3

What are the five levels of environmental organization, from largest to smallest?

• biome, ecosystem, community, population, organism

• ecosystem, biome, population, organism, community

• biome, population, ecosystem, community, organism

• biome, ecosystem, population, community, organism

The rabbits in this graph continue to grow until they reach the maximum number of individuals an ecosystem can support. What is this called?

• population density

• carrying capacity

• succession limit

• habitat maximum

Tags

NGSS.MS-LS2-1