A scientist finds seeds of an unknown plant on top of the soil in a desert.She measures the concentration of two hormones in these seeds.After it rains,she collects more of these seeds,and finds that the concentration of the two hormones has changed.A graph of her results is shown above.Identify the most likely hormones measured by the scientist.

Question

Quizplus · Accepted Answer

The graph shows a decrease in concentration of hormone 1 (blue line) in the seeds after rain, which indicates abscisic acid, a hormone involved in controlling seed dormancy and drought tolerance. The increase in concentration of hormone 2 (orange line) after rain suggests gibberellin, a hormone involved in promoting germination and growth. Therefore, the most likely hormones measured by the scientist are hormone 1: abscisic acid and hormone 2: gibberellin.

A Scientist Finds Seeds of an Unknown Plant on Top