how ecosystems work

An ecosystem is a community of animals and plants interacting with their ____________.

• habitat
• climate
• environment
• community

Because plants make their own food, they are called _______________.

• producers

• consumers

Tags

NGSS.MS-LS1-6

When animals use the food that comes from a plant to get energy, it is known as

• photosyntheisis

• chemosynthesis

• cellular respiration

• succession

Tags

NGSS.MS-LS1-7

Which term is used to refer to the many feeding relationships that are possible in an ecosystem?

• energy pyramid
• food web
• food chain
• energy transfer

Tags

NGSS.MS-LS2-3

Each step in the transfer of energy through a food chain or food web is known as a __________________.

• food chain

• food web

• trophic level

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Humans are affecting the balance of the carbon cycle by

• burning fossil fuels

• using carbonates at an alarming rate

• using fertilizers

• replanting the rainforests

Tags

NGSS.MS-ESS3-4

Which of the following is a type of secondary succession?

• islands formed by volcanic eruption
• abandoned parking lot
• forest after a fire
• rocks exposed after glacier melt

Species that colonize a newly available area during ecological succession are referred to as

• pioneer species
• climax species
• dominant species
• recessive species

What are the pioneer species that can break down rock during primary succession?

• lichens
• grass
• shrubs
• trees

The final stable community of organisms.

• food web

• climax community

• secondary succession

• producers

• cellular respiration