Question

Match the following tropism to its definition.
1. phototropism
2. thigmotropism
3. hydrotropism
4. geotropism

a. a plant growing or bending in response to water
b. a plant growing or bending in response to gravity
c. a plant growing or bending in response to touch
d. a plant growing or bending in response to light

Answer 1

Here are the matches for the tropism definitions:

1. phototropism - d. a plant growing or bending in response to light
2. thigmotropism - c. a plant growing or bending in response to touch
3. hydrotropism - a. a plant growing or bending in response to water
4. geotropism - b. a plant growing or bending in response to gravity