Unit 1, Lessons 8 - 10 Quiz

Plants get most of their matter from air and water. True or False

• True

• False

Decomposition eventually restores (recycles) some materials and nutrients back to the ____________ and ____________.

The ________ is the ultimate source of energy in ecosystems. Choose one:

• Sun

• Matter

Matter is continually recycled, and goes back and forth between living and nonliving parts of the ecosystem? True or False

• True

• False

If an Organism's needs are met, they can survive. True or False

• True

• False

Scientists use the term “Ecosystem" to mean: Choose one:

• A complex system that includes living and nonliving things together in their environment.

• A complex system with only living organisms.

What color arrow represents tiny bits of matter? _______________

Matter goes to the bodies of decomposers. As they burn food for energy, they release CO2 into the ______ and nutrients to the soil.

This symbol represents __________

When plants make sugar from carbon dioxide/CO2 and water, they also make oxygen/O2. They return _______________ to the air.