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Behavior is...
The way an organism reacts to a change in it's enviorment
Name 3 potential stimuli.
Light, Touch, and Gravity.
Roots are an example of negative/positive thigmotropism.
negative
is positive thigmotropism twords or away from touch
twords
what type of day gets the least amount of light
short day
Stimuli is...
Any changes in an organism's enviornment that causes a change in behavior
what is phototropism
phototropism is the growth of a plant twords or away from light
Mesophyll cells contain many ___
Chloroplasts
is negative thigmotropism twords or away from touch.
away.
what type of day gets the most light
long day
What is plant food called?
Glucose
why do trees outside grow straight up while indoor plants grow sideways
because of how the windows only give it light when its right outside so the plant needs to grow twords the light.
Why are roots an example of negative thigmotropism?
They grow away from objects to give them the easiest path to soil.
The top and bottom layers of the leaf are made up of flat, thin cells called what?
Epidermal cells
what part of plants uses negative gravitropism
Tropism is...
A response that results in plant growth toward or away from a stimulus
What gasses are involved in photosynthesis?
Carbon Dioxide, Water Vapor, and Oxygen
What is gravitropism?
The response of a plant to gravity.
What plant is known for using positive thigmotropism?
Vines
what part of the plant uses positive gravitropism
roots
TRUE!
what is thigmotropism
the growth twords or away from objects.
TRUE OR FALSE: In negative gravitropism, stems will grow toward gravity.
FALSE
what allows plants that use positive thigmotropim to cling to objects.
tendrals.
What is usable energy called?
ATP