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plant process questions

List one example of an internal stimulus and one example of external stimulus internal stimulus: hormones external stimulus: touch, light, gravity
Compare and contrast photoperiodism and phototropism. photoperdism: is the response to darkness phototropism: positive response to light.
List the five main types of hormones in plants how they help determine how plants grow. Ethylene: stimulates the ripening process Auxin: exhibits positive response to light Gibberellins: stimulates the stem to grow and seeds to germinate. Cytokinins: promote growth by faster cell division. Abscisic Acid: stops seeds and buds from growth.
Created by: ammeewing