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| The graph of an organism for activity over time |
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| A plant hormone that lengthens cells |
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| A timing mechanism in living things that is genetically determined |
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| Directional behaviours (taxis, homing, migration, tropisms etc) |
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| Prefix related to chemical |
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| A rythm of about 24 hours |
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| Monthly activity period of 18 days |
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| Tidal activity period of aprox 12.4 hours |
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| An interspecific relationship where one organism benifits but the other is uneffacted |
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| Photoperiod above which long-day plants flower and below which short-day plants flower |
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| A plant that flowers independently of the day length or season |
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| When seeds will not germinate unless certain conditions (such as cutting of the coat or a long period of cold) happen |
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| Muscles and glands that respond to a stimulus |
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| An internal rhythm that occurs when there are no external cues. It is caused by a biological clock |
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| Forcing the free running period to follow an external pattern |
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| Rapid plant growth at the expense of strengthening tissue, caused by a plant hormone (gibberellin) |
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| A rhythm that only continues when external cues are present |
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| The natural period of the rhythm if there are no external cues |
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A sense of the Earth’s magnet field.
Often used for directional cues (very useful on cloudy days when the sun cannot be used) |
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| Period of inactivity to survive adverse (usually cold) conditions by lowering the metabolic rate |
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| A set area in which animals seldom leave |
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| The ability for an animal to find and return to the home site |
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| A regulatory substance produced in an organism and transported in tissue fluids such as blood or sap to stimulate specific cells or tissues into action |
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| Inherited behaviour (not learned) |
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| Competition between members of a different species |
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| Competition between members of the same species |
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| Orientation movement of an animals in which the stimulus governs the rate, but not the direction of the movement (e.g. a bird migrates during the winter because of a stimulus and therefore becoming cold faster would make the bird migrate more often but it does not decide where it migrates to based on the stimulus. |
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| Behaviour modified by experience |
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| A plant that flowers when day length exceeds a certain minimum value |
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| Regular (usually annual) mass movement of members of a species from a place where they breed to another place where they usually feed and then back again |
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| Adaptive resemblance between unrelated species |
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| Response of a plant organ to a non-directional environmental stimulus, e.g. light intensity |
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| Visual centres of the brain |
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| Orientation response in which the strength of the stimulus determines the rate of linear movement |
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| A phase of a rhythm, such as its peaks, is shifted so that entrainment occurs |
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| A protein pigment found in plants, acting as the light receptor for photoperiodism in plants and some seed germination |
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| Any material resulting in colour of plant or animal cells, which is the result of selective colour absorption (e.g. a flamingo has pink pigments because of what it eats where as a green leaf doesn't have green pigments) |
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| A cell or organ able to detect changes in the environment e.g. an eye is a one for light |
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| A plant that flowers when day length is less than a certain minimum value |
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| Orientation guide for animals finding their way using the stars |
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| Change in an organism’s surroundings to which it can respond |
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| Orientation guide for animals finding their way using the sun |
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| Orientation movements of animals in which the direction of movement depends on the direction of the stimulus (e.g. a cow moving to the longer grass) |
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| The area deffended by an animal |
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| Plant movements which occur by growth, and in which the direction of the response depends on the direction of the stimulus |
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| External environmental cue by which an internal clock is reset |
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| Organism which produces offspring in large numbers but gives them little care |
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