Responses to the Environment - AP Biology

Imprinting is a rapid learning process occurring early in life, establishing long-lasting behavioral responses. Critical period learning that forms permanent attachments.

Osmoregulation is the control of water and solute concentrations in the body. Maintains proper fluid balance for cellular function.

Learned behavior is acquired through experience and environmental interactions. Behaviors modified by experience and practice.

Kinesis is a non-directional response to a stimulus, resulting in increased activity. Movement lacks direction but changes in response intensity.

Insulin is a hormone that regulates blood glucose levels by facilitating cellular uptake of glucose. Lowers blood sugar by enabling glucose absorption.

A negative feedback loop counteracts changes in a system to maintain stability. Opposes deviations to restore original state.

Stomata are pores that regulate gas exchange and water loss in plants. Control transpiration and photosynthetic gas exchange.

The hypothalamus regulates homeostasis and links the nervous system to the endocrine system. Central control center for body's internal balance.

Classical conditioning is a learning process that pairs a neutral stimulus with a reflexive response. Associates unrelated stimuli to create conditioned responses.

The pineal gland secretes melatonin, influencing sleep patterns and circadian rhythms. Controls daily sleep-wake timing.

The autonomic nervous system controls involuntary bodily functions like heartbeat and digestion. Operates without conscious control for basic functions.

Glucagon increases blood glucose levels by promoting the release of glucose from the liver. Raises blood sugar when energy is needed.

Auxins are hormones that regulate plant growth and response to light and gravity. They control cell elongation and directional growth responses.

The fight or flight response is triggered by the release of adrenaline and noradrenaline. Stress hormones activate sympathetic nervous system.

Gibberellins are plant hormones that promote stem elongation and seed germination. Stimulate growth and break seed dormancy.

Operant conditioning is a learning process where behavior is shaped by rewards or punishments. Consequences modify future behavior patterns.

Thermoregulation is the process by which animals maintain their body temperature. Essential for enzyme function and cellular processes.

A stimulus is any change in an organism's environment that elicits a response. Environmental changes trigger cellular and behavioral responses.

Phototropism is the growth of a plant towards or away from light. Plant shoots grow toward light for optimal photosynthesis.

The sympathetic nervous system prepares the body for stress-related activities. Activates during stress to mobilize energy resources.

Pheromones are chemicals that influence the behavior or physiology of other members of the same species. Chemical communication for mating and territory marking.

Ethylene is a plant hormone that regulates fruit ripening and response to stress. Gas hormone triggering fruit maturation processes.

ADH regulates water balance by increasing water reabsorption in the kidneys. Prevents dehydration by conserving body water.

The thalamus relays sensory and motor signals to the cerebral cortex. Processes and directs sensory information to brain.

Insulin is a hormone that regulates blood glucose levels by facilitating cellular uptake of glucose. Lowers blood sugar by enabling glucose absorption.

Photoperiodism is the physiological reaction of organisms to the length of day or night. Day length triggers seasonal behaviors and development.

Gibberellins are plant hormones that promote stem elongation and seed germination. Stimulate growth and break seed dormancy.

The thalamus relays sensory and motor signals to the cerebral cortex. Processes and directs sensory information to brain.

ADH regulates water balance by increasing water reabsorption in the kidneys. Prevents dehydration by conserving body water.