Most carbon dioxide enters plants through stomata on the

____________ causes fruit to ripen

Light energy for the plant to use in making its food is trapped by

The plant hormone that causes stomata to close and helps plants respond to water loss is

Plants that require short nights to flower are called ____________ plants

Light, _____________, and carbon dioxide all affect the opening and closing of stomata.

The autumn colors of tree leaves are due to _____________ in the leaves.

The type of growth response having to do with light is called_________

Which of the following describes the function of the chloroplast in plant cells?

What does the outer layer of the leaf do.

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