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

The correct answers are

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.

Explanation:

answer carbon and three oxygen atoms;