Question

1. how does this terrarian show a complete ecosystem?

a. it has consumers
b. it has decomposers
c. it has producers
d. all the above

Explanation:

An ecosystem requires producers (like plants that make food via photosynthesis), consumers (organisms that eat producers or other consumers), and decomposers (organisms that break down dead matter). A terrarium with all these components (as implied by the options) shows a complete ecosystem.

Answer:

d. All the above