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Topic 4 Lesson 4: Factors Influencing Growth

Horizontales
A chemical that affects growth and development​
a plant's response to seasonal changes in the length of night and day​
Stems and leaves grow toward sources of light
needed or necessary ​
Any change or signal in the environment that can make an organism react in some way ​
Verticales
The stems of plants respond to the stimulus of gravity by growing upward, away from gravity
A hormone that controls a plant's growth and response to light​
A period of time when an organism's growth or activity stops ​
A type of rock that forms from an existing rock that is changed by hear, pressure, or chemical reactions​
A plant's growth response toward or away from a stimulus​