AP®︎ Biology: Topic 8.1 Flashcards

The ability to detect and respond to internal or external environmental changes.

Behavioral responses change actions; physiological responses change internal body processes like hormones or enzymes.

A plant response to day length that helps time seasonal events like flowering.

Growth of a plant toward or away from a light source.

Taxis is directed movement toward or away from a stimulus; kinesis is random movement changing with stimulus intensity.

Nocturnal organisms are active at night; diurnal organisms are active during the day.

A rapid physiological stress response that prepares the body for immediate action.

Damage triggers chemical defenses and can signal nearby plants to activate protective responses.

Signals may be visual, audible, tactile, electrical, or chemical, each conveying information between organisms.

Behavioral displays or interactions used to attract mates and increase reproductive success.

Signals and behaviors between parents and young that promote care, feeding, and survival.

Signals used to locate, share, or coordinate access to food resources.

Signals used to establish social rank, defend space, and reduce direct conflict.

Innate behaviors are inherited; learned behaviors develop through experience and practice.

An organism's relative ability to survive and produce fertile offspring.

Actions by individuals that work together to improve survival or reproductive success.

Group behaviors that improve protection, foraging, navigation, or hunting through coordinated action.

Large-group coordination in social organisms that supports defense, reproduction, or resource collection.

Signals that alert others to danger and trigger defensive or escape behaviors.

Natural selection favoring behaviors that help relatives survive and reproduce because they share genes.