Weegy: A plant's response to light is known as: phototropism. User: Commercial plant growers artificially control the lengths of days and nights. This produces a response called A. photoperiodism. B. gravitropism. C. thigmotropism. D. phototropism. Weegy: Commercial plant growers artificially control the lengths of days and nights. This produces a response called: photoperiodism. User: Which is an example of positive gravitropism? A. the plant shoot growing up out of the soil B. the plant flower opening with the sunrise C. the plant root growing down into the soil D. the plant turning towards the sun Weegy: The plant root growing down into the soil - is an example of positive gravitropism. User: A negative tropism is a plant's growth response ________ the stimulus. A. away from B. toward C. diagonal to D. opposite of Weegy: A negative tropism is a plant's growth response AWAY FROM the stimulus. (More)

Weegy: The leaves, stems and roots of a plant are considered: organs. (More)

Weegy: An amoeba is not an animal because: it is unicellular. (More)

Weegy: "We observe today not a victory of party but a celebration of freedom- symbolizing an end as well as a beginning- signifying renewal as well as change." This statement is an example of: A. hyperbole (More)

Weegy: The leaves, stems and roots of a plant are considered ORGANS. (More)