CELLS 4.2 Response to Stimuli - Pre AP Biology Study Notes - New Syllabus.
CELLS 4.2 Response to Stimuli – Pre AP Biology Study Notes
CELLS 4.2 Response to Stimuli – Pre AP Biology Study Notes – New Syllabus.
LEARNING OBJECTIVE
CELLS 4.2(a) Describe the benefits associated with tropisms and/or taxes in organisms in response to an external stimulus.
CELLS 4.2(b) Predict how an organism might respond to a change from the external environment in order to maintain homeostasis.
Key Concepts:
- CELLS 4.2.1 Organisms have positive or negative responses to external stimuli in their environment in order to maintain dynamic homeostasis.
a. Plants exhibit tropisms that determine direction of growth toward or away from a stimulus, such as light, chemicals, gravity, touch, and water.
b. Animals exhibit taxes that enable them to move in response to a stimulus, such as food, light, or pH.