Plants have adapted to many different environments, including the water, the desert, and the air. All plants respond to stimuli such as light, gravity, seasonal changes, and disease. Since plants can’t move, they generally respond to stimuli by changing the way they grow.
Xerophytes: Plants adapted to dry environments.
Epiphytes: Plants that grow on other plants.
Tropism: When a plant grows toward or away from a
Phototropism: Plant’s response to light.
Gravitropism: Plant’s response to gravity.
Thigmotropism: Plant’s response to touch.
Photoperiodism: Plant’s response to changing sea-sons.
Dormancy: Period of little/no growth in plants.
Aquatic plants are adapted to water:
Xerophytes are adapted to dryness:
Epiphytes grow on other plants (do not grow in soil) and are adapted to air:
Plant responses are controlled by hormones (chemical messengers)
Daily and seasonal responses include photoperiodism
Responses to disease: