Set: Animal Behaviours and Plant Responses

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All 44 Terms

Term Definition
Abscission Leaf or fruit fall because of death of cells in the abscission layer in the stalk
Aggression Threatening behaviour usually associated with competition. It can involve predation however. A more specific term agonistic behaviour refer to conflicts within species but excludes predation.
Allelopathy Chemical inhibition of one species by another. Basically the same as antibiosis, except that the definition emphasises the chemical connection
Antibiosis An INTERspecific relationship where one organism is harmed, but the other is unaffected
Apical Dominance A tree where there is one main trunk and much smaller side branches. A bush is where all the stems are all equal.
Auxin A plant hormone that is involved in cell elongation
Mimicry Defensive technique in which an animal appears to be poisonous
Biological Clock Animals internal timing system
Circadian A rhythm of about 24hours
Circatidal A rhythm of about 12.5hours
Circalunar A rhythm of about 1 month
Circaannual A rhythm of about 1 year
Commensalism An interspecific relationship where one organism benifits while the other is uneffected
Crepuscular When an animal is active around sunrise and sunset
Diurnal Active during the day
Dormancy When seeds do not germinate unless certain conditions happen.(such as cutting the coat or a long period of cold)
Ecosystem All the living things in an area plus the pysical factors
Endogenous rhythm An internal rhythm that occurs when there are no external cues. Caused by a biological clock
Entrainment Forcing the free-running period to follow an external pattern
Exogenous rhythm A rhythm that occurs only when external cues are present
Free-running period The natural period of the rhythm if there are no external cues
Habitat The place or environment in which specific organims live
Home range An area that an animal uses for food, but will not defend
Homing Animal ability to find and return to the home site.
Interspecific Relationship between two different species
Intraspecific Relationship between members of the same species
Kinesis A whole-body response of animals where the response is independent of the stimulus direction, but may depend on the intensity of the stimulus
Limiting factor Any variable factor of the environment that limits the activity of an organim or population
Migration Annual mass movement of animals, from breeding areas to other non-breeding areas and then returning. Animals only
Long-day plant A plant that flowers with increasing day length, usually over 12 hours
Mutualism An interspecfic relationships where both benefit
Nastic A plant response that is independent of the direction of stimulus
Nocturnal Active at night
Parasitism An interspecific relationship where one individual is benefited and the other harmed
Period The length of a rhythm, how long it takes to repeat
Phase shift To change the start times of a rhythm, but not its period.(Entrainment)
Photoperiodism The response of plants to the lengths of day(or night)
Phytochrome A plant pigment that controls the photoperiodic response
Short-day plant A plant that flowers in short days, during the autumn or winter
Taxis Movement of an animal or part of its body towards or away from a directional stimulus
Stimulus Anything that causes an orgaism to react
Territory An area used by animal for feeding or breeding, that the animal will defend
Tropism A plant growth response to a directional stimulus
Zeitgeber Time signal for a biological clock. Eg sunrise, sunset, temperature, tidal, movement, day length

Set Information

Terms 44
Creator rgresson
Created November 25, 2007
Groups None
Tags animal, plants, biology
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rgresson : Changed Auxin → A plant hormone that lengthens cells to Auxin → A plant hormone that is involved in cell elongation
rgresson : Changed Mimicry → A harmless animal that looks like a poisonous to Mimicry → Defensive technique in which an animal appears to be poisonous
rgresson : Changed Biological Clock → Internal timing systems that continue without external clues and control the timing of activities of plants and animals to Biological Clock → Animals internal timing system
rgresson : Changed Interspecific → Between two different species to Interspecific → Relationship between two different species
rgresson : Changed Intraspecific → Within one species to Intraspecific → Relationship between members of the same species
rgresson : Changed Homing → The ability to find and return to the home site. In animals only to Homing → Animal ability to find and return to the home site.
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Most Missed Words

  1. Apical Dominance → A tree where there is one main trunk and much smaller side branches. A bush is where all the stems are all equal. - 2 misses
  2. Exogenous rhythm → A rhythm that occurs only when external cues are present - 2 misses
  3. Free-running period → The natural period of the rhythm if there are no external cues - 1 miss
  4. Intraspecific → Relationship between members of the same species - 1 miss
  5. Long-day plant → A plant that flowers with increasing day length, usually over 12 hours - 1 miss
  6. Short-day plant → A plant that flowers in short days, during the autumn or winter - 1 miss
  7. Tropism → A plant growth response to a directional stimulus - 1 miss