Level 3 Biology Animal and Plant Terms (AB)

what type of tropism is shown in this picture?

When several unpalatable organisms resemble each other to gain benefit - eg

General term for behaviours which help the group survive (e.g.breeding, territory, hierarchy).

Plant that flowers when day length is less than a certain minimum value.

Ability of an organism to find its way home over unfamiliar territory.

Reversable movements in plant parts-response to the presence or absence of external stimuli

A series of signals exchanged between males and females, often ending in mating.

Rhythm with a period of about a year when under constant environmental conditions.

Growth hormone which plays an essential part in tropisms – causes cell elongation.

Behaviour (e.g. head bowing in seagulls) showing a status lower than another individual.

An innate internal mechanism controlling the physiological activities of an organism (timing)

Orientation of an animal - rate of the movement depends on the intensity of the stimulus.

Movement of an animal - direction of the movement depends on the direction of the stimulus.

Rhythm with a period of about a day when under constant environmental conditions.

When a harmless organism mimics a dangerous organism to gain benefit

You can put a positive or negative prefix for a nastic response in plants

Rhythm with a period of about one tidal cycle when under constant environmental conditions.

Behaviour (e.g. standing erect) which shows a status higher than another individual.

Using the sun to find the direction of migration. Must compensate for the suns daily movement.

Plant that flowers when day length exceeds a certain minimum value.

Night length below which long-day plants flower and above which short-day plants flower.

Behaviour which is not learned over time - behaviour the organism is born with (coded in genes)

Active at night, active at day, active at dawn and dusk (in order)

Rhythm with an internal origin, independent of changes in the external environment.

Mass movement of a species, usually a two way journey at regular intervals, long distances.

Members of a group arranged in positions of dominance or subordinance to reduce aggression.

Situation when demand for a resource (e.g food) exceeds supply.

Relationship between two organisms where both benefit (e.g. crocodile and tick bird).

Rhythm with a period of about a lunar month when under constant environmental conditions.

Prefix for animal or plant responses to light, chemicals, gravity and water current IN ORDER

Differences in sexes, not including the sexual organs (e.g. tooth size, plumage, size, pelvis).

Plant that flowers when day length is less than a certain minimum value.

A graph showing the activity of an organism over a period of time.

Ritualised behaviour between animals to assert dominance

Process by which an internal clock becomes reset by rhythmic environmental conditions.

You can put a positive or negative prefix for a kinesis response shown by an animal

Peaks of an endogenous rhythm are advanced or retarded in response to a changed exogenous cue.

Prefix for behaviour responses to touch

An external environmental cue "Time giver" by which an internal clock is reset.

Aggressive behaviour between members of the same species. Can result in death or severe injury