Flow of Energy in an ecosystem

In nature, energy is neither created not destroyed.

• 1st law of Thermodynamics

• 2nd law of Thermodynamics

• Law of Biogenesis

What is thermodynamics?

• movement of heat

• it's magic

• none of them

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Place the ecology levels of organization in proper order (smallest to largest)

• organism > population > community > ecosystem > biosphere

• community > organism > ecosystem > biosphere > population

• organism > community > biosphere > population > ecosystem

• population > biosphere > ecosystem > community > organism

Which is a biotic factor?

• producers

• pH

• energy

• humidity

Tags

NGSS.MS-LS2-1

What is an omnivore?

• receives energy from the sun

• only eats meat

• only eats plants

• eats both plants and meat

The direction of an arrow in a food chain represents

• the flow of energy from organism B to A

• the movement of organisms

• the directionality of the sun

• the flow of energy from organism A to B

Tags

NGSS.MS-LS2-3

An ecosystem is a location on Earth that includes

• only biotic components

• only abiotic components

• interacting biotic and abiotic components

• positive and negative feedback loops

Tags

NGSS.MS-LS2-3

Which one is NOT an example of a decomposer?

• mushroom
• leaves
• mold
• worm

Tags

NGSS.MS-LS2-3

Name the producers in this food web.

• seagull and fish
• penguin and crab
• phytoplankton and seaweed
• seaweed and zooplankton

Tags

NGSS.MS-LS2-3

How many predators does the squid have?

• 1
• 2
• 3
• 4

Tags

NGSS.MS-LS2-2