Plants Responses and Growth

Depending on where you live, you may have noticed flowers blooming in the spring and the leaves of trees changing color in ________________.

• autumn

• summer

• winter

Plants respond differently to the length of nights. Other plants are not affected at all by the lengths of days and nights. (True or False)

• True

• False

• Unidentified

___________________ is a period when an organism’s growth or activity stops.

• Dormancy

• Tropism

• Winter

Dormancy makes plants die because of freezing temperatures and the lack of liquid water

• True

• False

• Unknown

Cooler weather and shorter days cause the leaves to stop making _______________________.

• chlorophyll

• stomata

• phototropism

When the leaves fall to the ground, the tree is ready for winter. (True or False)

• True

• False

• Unknown

When plants do not get enough of the resources they need, so they will grow as large as they normally would.

• True

• False

• Unknown

If a plant does not receive enough water, it will not grow to a healthy size. (True or False)

• True

• False

• Unknown