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I'mLichen Bio Ecol U
I'm Lichen Bio Ecol Unit
| Question | Answer |
|---|---|
| give an ex of an abiotic factor in a pond | water, light, temp, oxygen |
| what are fungi and bacteria of decay classified as | decomposers, aka saprophytes |
| put the following in increasing order of complexity:biosphere, ecosystem, population, organism, community | organism, population, community, ecosystem, biosphere |
| all the members of one species in one habitat | population |
| study of interaction of living things with their physical environment | ecology |
| interaction of living and nonliving factors | ecosystem |
| ex of biotic factor in a pond | competition between species |
| give 3 traits of a self-sustaining ecosystem | source of energy, organisms that can transfer that energy into food, and cycling of materials |
| vultures are an example of | scavengers |
| name 3 types of symbiosis | parasitism, commensalism, mututalism |
| animals that ingest both plants and animals | omnivores |
| animals that eat plants | herbivores |
| what do arrows in a food chain show | direction of energy flow |
| define mutualism | each species benefits somehow |
| humans and athlete's foot | parasitism |
| greatest amount of energy is present in... | producers |
| why are producers called producers, or autotrophs | bc they produce their food by themselves, by the process of photosynthesis |
| what level of organisms contains the largest percentage of stored energy | producers |
| what level of CONSUMERS contains the largest percentage of stored energy | primary consumers, aka herbivores, bc they eat directly on the plants |
| where are autotrophic organisms located on a pyramid diagram | bottom |
| where are primary consumers located on a pyramid diagram | right above the producers that they consume |
| which level of a pyramid contains the most biomass, energy, and numbers of organisms | producers,at bottom |
| classify algae | autotrophs |
| why is a food web more realistic than a food chain | practically all species are eaten by or feed on more than one other species |
| what do algae and plants put into an ecosystem | oxygen |
| precipitation, transpiration, and condensation are part of which cycle | water |
| what organisms are the recyclers in an ecosystem | decomposers |
| if a plant has root nodules, it is involved in ... | converting atmospheric nitrogen into nitrates |
| explain the role of producers in the carbon-oxygen cycle | producers take CO2 out of the air, and release O2 |
| explain the role of consumers in the carbon-oxygen cycle | use CO2 and release O2 |
| define transpiration | release of water from the leaves of plants into the air |
| replacement of one community by another until a climax stage is reached | succession |
| climax community in NY | oak-hickory forest |
| define niche | role an organism plays in an ecosystem |
| the first organisms in succession, such as lichens, are called | pioneer organisms |
| describe aquatic succession | gradually a swamp or pond fills in and becomes land, over time |
| why would the amount of vegetation increase in a pond over time | decreasing water depth |
| what has allowed human population to rise so quickly over the past 10 yrs | development of antibiotics and medical technology |
| what human activity is the underlying cause of most other human problems with the environment | increasing human population |
| what happens if the decomposers in an ecosystem decrease | ecosystem would be less stable bc nutrients are not available due to lack of decomposers |
| what human activity would have the greatest impact on the oxygen-carbon dioxide cycle | destroying large forest areas |
| what would happen if funding for public transportation like school buses is cut | more pollution bc more people drive |
| why is actual population growth less than the potential population growth | resources are limited |
| choose an ecological problem: ozone depletion, loss of biodiversity, or global warming... | describe causes, effects, and solutions |
| why is biological control (like native consumers) an advantage over herbicide use | only affects the troublesome species, doesn't pollute water, land or air |
| What is a disadvantage of using biolocial controls | may overpopulate themselves, like the cane toad in Australia |
| describe causes, effects, and solutions to eutrophication |
Created by:
thomasel
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