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22 Cards in this Set
- Front
- Back
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Adaptive Value
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Behaviour that increases the chances of survival of the individual or the group
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Biological Clock
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An internal mechanism by which plants and animals are able to keep a sense of time
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Circadian Rhythm
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Describes a 24-hour rhythm
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Diurnal
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Means: active during the daylight hours
Example: Numbats Feature of animal: Camoflague Benefit: Blends in with habitat Challenge: Predation |
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Crepuscular
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Means: active during dawn or dusk
Example: Sugar Gliders Feature of animal: produce aroma from scent glands Benefit: marks their terretory Challenge: increase in light and heat |
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Nocturnal
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Means: active during the night
Example: Bats Feature of animal: Sona Benefit: visibility is comprimised Challenge: predation |
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Social behaviour
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The behaviour of animals living in groups
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Acoustic Signals
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Example: Termite head-banging is an acoustic signal.
A sound with precise, species-specific information |
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Innate Behaviour
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The ability to interpret the meaning of this signal.
it is programmed in the organisms genes and does not need to be learnt |
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Chemical Signals
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Example: Sugar gliders release aroma from scent glands. This gives terrestrial gain.
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Visual Signal
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Example: display of male peacock feathers. Attracts mates
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Intraspecific behaviour
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Occurring between individuals of the same species
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Interspecific behaviour
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Occurring between individuals of different species
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Dominance Hierarchy
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A set of levels in society where some members are subordinate to others
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Types of migration
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- Land
- Water -Air |
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Land migration
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orang-utans moves around its terrioty in search for food
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Water migration
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white pointer shark overs thousands of kilometres in search of prey
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Air migration
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canadian geese migrate for food in a V formation from Alaska to south Mexico
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Three types of development of mammals
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- Monotremes
- Marsupial - Placental |
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Monotremes
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(Echindna) give birth to soft leathery eggs that they guard until ready for hatching
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Marsupial
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(Brush-tail possum) give birth to underdeveloped young who then spend time in the pouch until they are fully formed
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Placental
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(Humans) retain the young within their mother's body til they are fully formed
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