As a Seed Germinates,its Shoot Points Upward Toward Light,and Its

question 34

Multiple Choice

As a seed germinates,its shoot points upward toward light,and its root grows downward into the soil.Turn the plant sideways,and the stem and roots bend according to the new direction of gravity.How do roots and shoots respond to gravity?

• A) by the absorption of light by phytochromes
• B) through circadian rhythms
• C) through thigmotropism
• D) by sensing the photoperiod
• E) by the movement of plastids in root cap cells

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Exposure

The state of being subjected to contact, attention, or visibility, especially in contexts of learning or media.

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A formal or informal petition for something to be provided or done.

Communication Situation

The context or environment in which communication occurs, including the participants, medium, and purpose.

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