Use the drop-down menus to complete each sentence.

Question

Revolt · Accepted Answer

A plant grows toward a sunny window. This response is an example of .:

phototropism

Sometimes a plant grows around a tree for support. This response is an example of .:

thigmotropism

The roots of a plant grow toward a water source. This response is an example of .:

hydrotropism

The roots of a plant grow down into the soil. This response is an example of .:

gravitropism

Plant Responses