The lowest level of environmental complexity that includes living and nonliving factors is the

• biome

• ecosystem

• community

• biosphere

Plants are

• producers

• herbivores

• primary consumers

• omnivores

Tags

NGSS.MS-LS2-3

All the interconnected feeding relationships in an ecosystem make up a food

• interaction

• network

• chain

• web

Tags

NGSS.MS-LS2-3

A word that means the same thing as consumer is

• producer

• heterotroph

• autotroph

• carbohydrate

Each of the following is an abiotic factor in the environment EXCEPT

• plant life

• rainfall

• soil type

• temperature

The figure above shows succession in an ecosystem. What organisms are found in the climax community for this ecosystem?

• lichens and moss

• weeds and grasses

• trees and shrubs

• volcanoes and soil

A symbiotic relationship in which both species benefit is

• commensalism

• predation

• mutualism

• parasitism

Primary succession would most likely occur after

• a forest fire

• farm land is abandoned

• a lava flow

• a severe storm

Tags

NGSS.MS-LS2-3

Which of the following is true about secondary consumers in an ecosystem?

• they eat only plants

• they are eaten by primary consumers

• they are smaller and weaker than primary consumers

• they are fewer in number than are primary consumers

All of the following statements about the diagram above are correct EXCEPT:

• the grasshopper is an herbivore

• only two trophic levels are depicted

• the mouse and grasshopper are at the same trophic level

• the grass is a producer

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-4