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Unformatted text preview: -Obtain or expel something When might you want to minimize it?-Decrease exchange surface-Retain something Homeostasis: steady state physiological condition of the body-Thermoregulation and osmoregulation Ectotherms – body temperature determined by environment (mostly) Endotherms – can regulate their body temperature by high metabolic rate Which is not an endoderm? Fast-swimming tuna, swimming elephant, shivering insect, basking python , hibernating grizzly bear. Feature Organism: Wood Frog (Rana sylvatica)-How does it survive? It freezes.-Cryoprotectant: Glucose and Urea Friday Bonus: You encounter an animal that is heterotrophic, dependent on light for survival, possesses true tissues, and is dibloblastic. You would also expect this organism to also have: -zooxanthellae-nematocysts-radial symmetry-b and c-all of the above...
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- Spring '07
- Great American Interchange, volume ratio, SA Exchange