Worksheet Questions on Plants, Nitrogen Fixation, and Forests

Front

Living things are formed from carbon-containing molecules, so the carbon cycle is the only matter cycle that really affects humans.

Back

True

Front

Lichens make good pioneer species because they can grow on bare rock.

Back

True

Front

Does the carbon cycle lack an atmospheric reservoir?

Back

False

Front

A green plant is wrapped in an airtight plastic bag and placed in sunlight for one hour. The oxygen level of the air inside the bag will increase during that time.

Back

True

Front

Primary succession is the most rapid form of succession because soil (and usually a few species) are already established.

Back

False

Front

Phosphorus is an important element found in cell membranes, DNA, and ATP.

Back

True

Front

Do plants only have chloroplasts and animals only have mitochondria?

Back

False

Front

Which process describes nitrogen fixation?

Back

Bacteria take nitrogen from the air and convert it to a form usable by plants

Front

What type of succession is most likely to happen in the image to the right?

Back

primary

Front

At which stage are the most pioneer species found?

Back

A