Ecology

The diagram above represents relationships in an

ecosystem. What is the primary source of energy in

this environment?

• cellular respiration in the plants

• energy from minerals in the soil

• fossil fuels

• solar energy

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What is one of the best ways to represent the

interdependence of all of the organisms in an

ecosystem?

• a cell model

• a food chain

• a diagram of the water cycle

• a food web

Tags

NGSS.HS-LS2-4

NGSS.HS-LS2-6

Stability within an ecosystem is achieved partially by

the presence of organisms that break down important

molecules and return those nutrients to the soil. These organisms are

• plants

• herbivores

• detritivores

• decomposers

Tags

NGSS.MS-LS2-3

The diagram below represents an energy pyramid.

Which type of organism could occupy levels B, C,

and D of this energy pyramid?

• consumer

• producer

• autotroph

• carnivore

Tags

NGSS.MS-LS2-3

Producers are generally found at the beginning of a

food chain. Which statement best explains why this

is true?

• Producers are usually smaller in size than

  consumers.

• Producers do not rely on other organisms for

  food.

• There are always more consumers than

  producers in food chains.

• Consumers are always more complex

  organisms than producers.

Tags

NGSS.MS-LS2-3

Some organisms in an ecosystem are represented in

the pyramid below. In the pyramid, the arrows

labeled X represent

• the loss of organisms due to predation

• a decrease in photosynthetic organisms

• the loss of energy in the form of heat

• a decrease in available oxygen

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4

A single individual belonging to a specific species

• Biotic

• Community

• Organism

• Reptile

All of the living and nonliving things in an area that interact with each other are called a/an ______.

• community
• habitat
• population
• ecosystem

Tags

NGSS.HS-LS2-4

NGSS.HS-LS2-6

Two or more members of a particular species living and interacting in the same area

• Community
• Population
• Organisms
• Biosphere

Tags

NGSS.HS-LS2-6

Different populations living and interacting with each other in the same area

• Biome
• Ecosystem
• Community
• Niche

Tags

NGSS.MS-LS2-2