AP®︎ Biology: Topic 8.1 Practice Test
Prepare for your quiz, test, or the AP exam with focused practice questions on Topic 8.1 of AP Biology – Responses to the Environment.
Questions List
Topic 8.1
Question 1 Easy
This question tests the following: ENE-3.D
What process allows organisms to detect and respond to changes in their environment?
What You’re Being Tested On:
Explore the learning objectives taken directly from the College Board’s AP® Biology Curriculum. Ensure you’re prepared for the exact topics covered on the AP® exam, in-class tests, and quizzes, and gain confidence in your mastery of the material.
Topic 8.1: Responses to the Environment
Learning Objective: 8.1.A
Explain how the behavioral and physiological response of an organism is related to changes in internal or external environment.
Essential Knowledge: 8.1.A.1
Organisms respond to changes in their environment through behavioral and physiological mechanisms. Exclusion: Knowledge of specific behavioral or physiological mechanisms is beyond the scope of the AP Exam. Illustrative examples: Photoperiodism and phototropism in plants; Taxis and kinesis in animals; Nocturnal and diurnal activity.
Essential Knowledge: 8.1.A.2
Organisms exchange information with one another in response to internal changes and external cues, which can change behavior. Illustrative examples: Fight-or-flight response; Predator warnings; Plant responses to herbivory.
Learning Objective: 8.1.B
Explain how the behavioral responses of organisms affect their overall fitness and may contribute to the success of a population.
Essential Knowledge: 8.1.B.1
Organisms communicate through various mechanisms (visual, audible, tactile, electrical, and/or chemical signals). i. Organisms have a variety of signaling behaviors that produce changes in the behavior of other organisms and can result in differential reproductive success. ii. Animals use signals to indicate dominance, find food, establish territory, and ensure reproductive success. Exclusion: Knowledge of specific mechanisms of communication is beyond the scope of the AP Exam. Illustrative examples: Parent and offspring interactions; Courtship and mating behaviors; Foraging by bees and other animals.
Essential Knowledge: 8.1.B.2
Responses to information and communication of information are vital to natural selection and evolution. i. Fitness favors innate and learned behaviors that increase survival and reproductive success. ii. Cooperative behavior tends to increase the fitness of the individual and the survival of the population. Exclusion: The details of the various communication and community behavioral systems are beyond the scope of the AP Exam. Illustrative examples: Pack behavior in animals; Herd, flock, and schooling behavior in animals; Predator warnings; Colony and swarming behavior in insects; Kin selection.
