Plant tropism and chemical defense
Автор: Botany Bay Ecotours
Загружено: 2020-04-22
Просмотров: 25
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The tree canopy creates a tunnel on Botany Bay Rd on Edisto. This is a great example of tropism- “the turning of all or part of an organism in a particular direction in response to an external stimulus.” Have you ever seen trees growing toward the sunlight in a way that creates a canopy over the road?
“Erythrina herbacea” is the genus and species name of coral bean/cardinal spear. (Using binomial nomenclature- 2 term naming system of all living things that uses the Latin grammatical system.) This plant has an orange seed in the fall. It was used by Native Americans on Edisto to harvest fish because it contains a compound similar to digitalis- a heart medicine that humans use. It would kill the fish and they would float to the surface!
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