| A | B |
| hormones | chemical signals that are produced in one part of the body, transported to other cell parts, bind to specific receptors, and trigger responses in target cells and tissues |
| minute quantities of hormones | induce substantial change in an organisim |
| two or more hormones | gevern the responses of a plant |
| tropism | any growth response that results in curvatures of whole plant organs toward or away from stimuli |
| phototropism | the growth of a shoot towrd light |
| auxin | any chemical substance that promotes the elongation of coleoptiles |
| cytokines | stimulate cytokinesis, or cell division |
| gibberellin | growth hormone that coused rice to grow waaaayyyyy to much |
| abscisic acid | (ABA) promotes dormancy |
| ethylene | instigates a seedling to preform tripple response |
| tripple response | emables a seedling to circumvent an obsticle |