Worksheet Questions on Plants, Nitrogen Fixation, and Forests

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

• True

• False

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

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

• True

• False

Carbon is the only biogeochemical cycle that lacks an atmospheric reservoir (i.e. source/sink).

• True

• False

Tags

NGSS.HS-ESS2-6

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.

• True

• False

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

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

• True

• False

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

• True

• False

Plants only have chloroplasts and animals only have mitochondria

• True

• False

Tags

NGSS.MS-LS1-6

NGSS.MS-LS1-7

Which process describes nitrogen fixation?

• Organisms die and are decomposed into ammonia in the soil

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

• Plants take nitrogen from the air and store it in their roots

• Animals eat plants containing nitrogen and return it to the soil through urination

Tags

NGSS.MS-LS2-3

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

• secondary

• tertiary

• climax

• primary

Tags

NGSS.MS-LS2-4

At which stage are the most pioneer species found?

• A

• B

• C

• D