Heart Blood vessels. (Arteries, Capillaries, and Veins)
Pangaea started to break apart.
<span>The hormone which is being produced under a water-deficit condition which triggers a drought response is known as Abscisic Acid or ABA.
Abscisic acid is termed as a plant hormone. The main functions in the development of plants include
1. Stomatal closure.
2. Control of organ size.
3. Bud dormancy.
It responds to environmental stresses in plants, which include heat stress, freezing tolerance, cold tolerance, soil salinity, and drought.</span>
