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Physiological Eco.
Temperature
| Question | Answer |
|---|---|
| Physiological Ecology | the study of interactions between individuals and the physical environment |
| Examples of physical factors | Temperature Moisture Wind Sunlight Soil nutrients |
| Why can't organisms live everywhere? | Organisms cellular processes can't work equally well under all conditions. There are certain limits in which an individual can survive. |
| Organisms are organized by... | bag of molecules |
| Organism maintain the "correct" internal environment | Homeostasis |
| Example) Why can a giraffe survive in the taiga? | - Too little hair - lose too much heat from long legs and neck - Might fall in deep snow |
| Is acclimation an evolution? | NO |
| Define acclimation | the change within a single individual from good functioning under one set of conditions to good functioning under another set of conditions |
| Example of accmlimation | high altitude > less O available > breathing and heart rate go up |
| What environmental factors affect the temperature of an organism? | Altitude Compass direction Vegetation Shade Ground floor Presence of boulders and burrows |
| Strategies to deal with environmental temperature | A. evolve adaptations cope with physical environmental B. Behaviorally adjust internal temperature C. Physiologically regulate internal temp |
| Name 4 adaptations that maintain high body temperature and conserve energy? | - ability to shiver - insulation - body shape - body size - drop body temperature at night - countercurrent circulation (heat exchange) |
| What do chickadees do to maintain their body temperature when in cold weather? | They drop their body temperature at night |
| 2 Examples for concurrent circulation | - dolphin flippers - bluefin tin |
| Organisms face different environmental conditions in... | Different biomes |
| Can organisms live everywhere? | NO |
| How is evolution different from acclimation? | Organisms evolve adaptations that allow them to survive specific environmental conditions |
| What is Temperature? Acclimation or Evolution? | Evolution |
| Example of temperature | Sand colors (clear and black) |
| White sand | Reflects all wavelength of visible light |
| Black sand | Absorbs all wavelength of visible light |
| When given the same amount of solar energy... | The blank sand heats up faster than white sand |
| Grasshoppers that rear at low temperatures develop... | Dark pigmentation that is highly absorbent of visible light |
| Grasshoppers that read at high temperatures develop... | Light pigmentation |
| Example of "evolve adaptations to cope with physical environment" | Beaches and Grasshoppers |
| Example of "Behaviorally adjust temperature" | Andean lizard |
| What does the lizard to to reduce heat loss? | Perching on a bed of plant material and pressing flat against the ground |
| What does the lizard do to increase heat gain? | Exposes its darkly pigmented back to the sun |
| Cats are also similar to lizards and butterflies by... | Fluffing up hair, curl in a ball, and lie in a sunny spot out of the wind |
Created by:
animalsavior
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