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36 Cards in this Set
- Front
- Back
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Birds class |
Aves |
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Heavier bird weight |
156kg |
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What are Aves essentially |
Feathered homeothermic reptiles |
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Aves beak matseial |
Keratin |
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Bird and dinosaur shared ancestor |
Archosauria |
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Flightless bird superorder |
Paleognathae |
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Superorder birds with flight |
Neognathae |
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Ideas of wing evolution |
From arms used to jump. From gliders. From mating displays. |
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Golden tree frog |
Uses webbed feet as parachute. Coukd be similar to sing evolution. |
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Javin flying frog |
Webbed feet evolved into mini wings, glides at an angle. |
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Wallace frog |
Uses webbed feet an slow and control descent. Can fly forward as far as down distance
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Flying gecko |
Fringes on body |
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Dragon lizard |
Huge frisbee like sail. 200m! |
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Golden tree snakes |
Loops body and projects body forward theb flattens and glides ib air using s shaped patterns . 150m! |
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What do birds need for flight |
Light body, power, excellent vision |
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Flight adaptations |
Feathers, elimination of some bones, fusion of others, hollows, keratin beak. |
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Use of feathers |
Provide lift, repel water, insulate body |
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Types of feather |
Tail, flight, plume, semiplume, downy, filoplume and bristle |
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Endothermic |
Maintain body heat despite weather conditions |
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Mammal endotherm temp |
36-39 |
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Bird endotherm temp |
40-42 |
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Endothermic regulation |
By oxidation of food, cellular metabolism, muscular contraction |
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Original father evolution reason |
Insulation NOT flight |
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What supports wing muscles |
Fused trunk vertebrae |
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Wing muscle attachment |
Keel on sternum |
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Respiratory system of birds |
One way |
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Heart of birds |
4 chambered heart |
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Pneumatized bones |
Hollows |
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Synsacrum |
Fused vertebrae |
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Internal bird organ organisation |
Shifts centre of gravity |
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What muscle depresses wing |
Pectoralis |
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What muscle raises wing |
Supracoracoideus |
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Four major wing forms |
Elliptical, high speed, dynamic soaring, high lift |
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Aspect ratio |
Ratio of wing length to average width |
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Stupid |
App |
