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Relations & Pyramid
Ecological Relationships & Ecological Pyramids
| Question | Answer |
|---|---|
| relationship where both organisms benefit | mutualism |
| relationship where 1 benefits & the other is NOT affected | commensalism |
| relationship where 1 benefits & the other is harmed | parasitism |
| relationship where 1 benefits & the other is hunted & eaten | predation |
| organism that does the harming to get food | parasite |
| organism that hunts and kills the other for food | predator |
| 2 ways for population size to increase | births and immigration |
| 2 ways for population size to decrease | deaths and emigration |
| population growth that slows down & stops | logistical growth (S-shaped curve) |
| population growth that continues at constant rate without stopping | exponential growth (J-shaped curve) |
| explains that toxins/pollution increases as you move up ecological pyramid | biomagnification |
| explains that energy, # of organisms, & biomass decreases to 10% moving to the next trophic level | Rule of 10 / 10% Rule |
| this happens to 90% of energy at each trophic level | used for growth & lost as heat |
| density- independent factors | human activity and natural disasters are this type of factor |
| density- dependent factors | spread of disease and competition are this type of factor |
| process that takes sunlight and converts into food energy (glucose) | photosynthesis |
| cell organelle where photosynthesis happens | chloroplast |
| process that takes food energy and converts into chemical energy (ATP) | cellular respiration |
| cell organelle where cellular respiration happens | mitochondria |
| cycle involving precipitation , runoff, condensation , evaporation, transpiration | water (hydrologic) cycle |
| cycle involving burning fossil fuels , combustion, greenhouse gases | carbon cycle |
| cycle involving bacteria, lightning strikes, using fertilizer | nitrogen cycle |