Question

write true if the statement is true or false if the statement is false.

1. ______ energy enters most ecosystems in the form of chemical compounds.
2. ______ all ecosystems have organisms that are classified as producers.
3. ______ chemoautotrophs include archaea and certain bacteria.
4. ______ heterotrophs include producers and decomposers.
5. ______ examples of detritivores include fungi and cockroaches.
6. ______ most organisms are consumed by just one species.
7. ______ there are rarely more than four trophic levels in a food chain or food web.

Explanation:

1.

Energy enters most ecosystems as sunlight (light energy), which is converted to chemical energy by producers. So the statement is false.

Ecosystems need producers (autotrophs) to convert energy into organic matter. All ecosystems have producers (e.g., plants, chemosynthetic bacteria). So the statement is true.

Chemoautotrophs use inorganic chemicals for energy. Archaea and certain bacteria (e.g., nitrifying bacteria) are chemoautotrophs. So the statement is true.

Answer:

false

2.