Question

define tropism, phototropism ,geotropism , and nasticism
please tell ASAP have test in 5 min​

Answer 1

Answer:

A tropism is the innate ability of an organism to turn or move in response to a stimulus. As opposed to a learned ability, innate reactions are genetically programmed. Organisms with a tropism will naturally turn toward a stimulus.

Explanation:

geotropism :-

oriented growth with respect to the force of gravity.

nesticims :-

designating, of, or exhibiting movement or change in position of a plant or its parts, as in the opening and closing of flowers, in response to a stimulus but independent of the direction of the stimulus and caused by unequal growth of certain cells, changes in light intensity,

Answer 2

DEFINITION

• A tropism is a biological phenomenon, indicating growth or turning movement of a biological organism, usually a plant, in response to an environmental stimulus. In tropisms, this response is dependent on the direction of the stimulus.
• Phototropism is the growth of an organism in response to a light stimulus. Phototropism is most often observed in plants, but can also occur in other organisms such as fungi. The cells on the plant that are farthest from the light have a chemical called auxin that reacts when phototropism occurs.