What is the initial energy source for nearly every food web?
Which organisms in a food web break down dead plants and animals?
Select two roles of decomposers in an ecosystem.
Select the two sources of matter that plants need for growth.
Which process allows plants to convert sunlight into energy?

Draw and label arrows to model how the organisms in the jar interact with matter in the air to survive.
Claim: If the mouse is removed from the jar, then the plant’s growth will decrease.
Use evidence from your model to support the claim.