Tropisms & Plants
Published on Apr 07, 2016
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PRESENTATION OUTLINE
There is a difference between positive and negative tropism. Positive goes toward and negative goes against. Then there's also a difference between the stimuli and stimulus. The difference between stimuli and stimulus is that one is plural and the other is singular, the definition of it is a thing or event that evokes a specific functional reaction in an organ or tissue.
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Gravitropism
It's a plants response to gravity.
Photo by BlueRidgeKitties
Phototropism is a plants response to the light, it can be sunlight or artificial, because they were going towards the light.
Photo by r_neches
Thigmotropism is vines growing towards a stationary or a still object.
Photo by Grant MacDonald
Chemotropism is a plants response to chemicals that would be fertilizer, a negative one would be a weed killer.
Photo by D.Eickhoff
Hydrotropism is a plants response to water.
Photo by thienzieyung
Thermotropism is a plants response to temperature change
Photo by Ted's photos - For me & you
