Bio Animal and Plant Responses 90716

Competition between members of different species 

Mass movement of organisms between two habitats (seasonal or regular) 

Photoperiod above which long-day plants flower

Invesment of resources by parents in the survivial of offspring

Active at night, inactive during the day

Tidal activity period, approximately 12.4 hours

Tropic movement in response to light

Tropism movement in response to water

The speed of movement is reated to the intensity of stimulus

A social "pecking" order led by Alpha individual

The amount of random turning is related to the intensity of stimulus

Competition between members of the sae species

Using stars to navigate

Response to diffuse stimuli that do not come from any particular direction

Plants that flowers when the day length is less than a certain minimum value

Area in which males (usually birds) congregate to mate with females

groth hormone which plays an essential role in tropisms

Resemblance of a harmsless species to one that is poisonous

Regulation by activity by day length

Organisms who produce and care for a small number of offsping

An are in which an animal or group of animals seeks food, but does not generally defend

The ability to fin and return to home site

Animals only: A non-directional response to a stimulus

Monthly activity period, 29 days

A stable relationship between opposite sexs that ensures mating

Plants only: Plant movement by growth. Direction of response depends on direction of stimulus

Using the sun to navigate

Active at dawn and usk

Process by which an internal clock becomes reset by rhythemic environemental factors

Tropic movement in response to contact

Wheel to which germinating plants can be attached and rotated

Plant protein involved with the measurement of photoperiod

Mimicry between unpalatable species

Determinging one's position relative to other locations

Plant growth substance that promotes elongation so shoots

Behaviour rhythm proceeding independently of external changes

Organism which produces large numbers of offsring but gives them little cares

Behavour that is modified by experience

Behaviour driven by external stimuli

Complex behaviour that is not modified by experience

Plant that flowers when day length exceeds a certain minimum values

Area that is defended by an animal

An internal timing system which controls (to some extent) timing of activities of organisms

Behaviour driven by internal stimuli

External environmental cue by which an internal clock is reset

Tropic movement in repsonse to a chemical

Adaptive resmemblance between unrelated species

Yearly activity perioud, approximately 360 days

Plant that flowers independently of day length

Active during the day, inactive at night

Daily acticity, approximately 24 hours

The movement of animal towards or away from stimulus from one direction

Tropic movement in respnse to gravity