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28 Cards in this Set
- Front
- Back
- 3rd side (hint)
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John Ostrom |
Started debate over hot blooded vs warm blooded dinosaurs. They had anatomy suggesting an active lifestyle |
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Metabolism |
Chemical activity of cells that generates heat. |
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Metabolic rate |
A measure of oxygen consumption |
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Endothermic |
Endo = inside, thermic = temperature |
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Ectothermic |
Ecto = outside thermic = temperature |
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Homeothermic |
Homeo = same. Maintain a constant temperature |
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Poikilothermic |
Fluctuating core temperature with the ambient temperature |
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Benefits of endothermy |
Greater potential for constant activity, and ability to be fully active at night |
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Costs of endothermy |
Must consume ten times the amount of food as a similar sized ectotherm. |
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Inertial homeothermy or gigantothermy |
Body temperature is maintained by virtue of size rather than greater metabolic rates. |
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Key evidence for body temperature |
Posture, gait, relative brain size, bone microstructure, blood pressure, bird ancestry, predator prey relationship, polar dinosaurs, body size. |
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The six elements |
Carbon, hydrogen, nitrogen, oxygen, phosphorus, and sulfur. |
CHNOPS |
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Three major players in the ecosystem |
Producers, consumers, decomposers. |
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Modern producers |
Plants, bacteria and algae use photosynthesis. dominant plants are angiosperms. |
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Mesozoic producers |
Flowing plants are dominant by the end of the Cretaceous period. Insects were major players in helping plants reproduce. |
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Modern consumers |
Plants have chemical and physical defense against the consumers. The consumers have bacteria in the gut to help. |
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Mesozoic consumers |
Similar to modern day. Dino's evolved specialized mouths for eating different types of plants. |
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Modern decomposers |
Fungi and bacteria |
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O A B C |
O = organic materials A = minerals and hummus B = fine clays C = fragment rock debris |
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Mesozoic decomposers |
Dung beetle, bacteria (play a crucial roll in fossilisation) |
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Bizarre structures |
1 predator defense 2 thermoregulation 3 disparity and same species combat |
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Extant phylogeny bracket |
the groups of vertebrae most closely related to Dinosaur |
Birds and crocodile |
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Homologies |
characteristics that can be traced back to a common ancestor |
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Analogies |
Structures that have the same shape or might perform the same function |
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Biochemical properties |
Is it strong enough to use as a weapon? |
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Species specific features |
Each species has its own particular type of structure |
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Oviraptor |
Nesting eggs found in flaming cliffs. |
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Egg mountain Montana |
Charles Gilmore and Jack Horner . 70 nests occupied in the same year. Maiasaur, good mother lizard. Plant matter found, variety of the size of the new Born's, bones are soft cartilage, |
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