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Ecosystems Demo
| Question | Answer |
|---|---|
| 4 Spheres of Earth | Biosphere, atmosphere, hydrosphere + lithosphere |
| Biosphere | Every part of Earth where life exists (including land, water and air) |
| Lithosphere | Ground (solid crust making up earth) including soil |
| Hydrosphere | All water on, above or below Earth's surface |
| Atmosphere | Air, layer of gases surrounding earth |
| Ecology | Study of how organisms interact w/ e/o + w/ their environment |
| Ecosystem | Complex + self-regulating system where living things interact w/ e/o + w/ non-living things |
| Biotic | Living |
| Abiotic | Non-living |
| Chain of ecology | Organism < Population < Community < Ecosystem |
| Population | many individual organisms from single species in particular area |
| Community | individuals from all populations |
| Sustainability | ability to maintain natural ecological conditions or processes w/o interruptions, weakening or loss of value. all components of ecosystem interact to maintain steady set of conditions making it sustainable for many yrs |
| Photosynthesis | Process where Sun's energy converts into chemical energy (food) |
| Organisms able to do photosynthesis? | Producers |
| Producers | Organisms able to do photosynthesis |
| Formula for photosynthesis | Carbon dioxide + water (+ light energy) = sugar + oxygen |
| Carbon dioxide + water (+ light energy)= | Sugar + oxygen |
| Cellular respiration | Process where sugar + oxygen convert into carbon dioxide to provide energy for cell |
| organisms that use food made by producers? | consumers |
| consumers | organisms that use food made by producers |
| Formula for photosynthesis | Sugar + oxygen = Carbon dioxide + water (+ energy) |
| Sugar + oxygen= | Carbon dioxide + water (+ energy) |
| mitochondria | organelles that convert sugar + oxygen to energy |
| herbivore | eats producers only, consume only plant material |
| carnivore | eats consumers only, consume only animal material |
| habitat | environmental space where organism lives including all components of that space |
| ecological niche | organism's role in ecosystem, includes all ways organism interacts w/ biotic + abiotic environments |
| what influences and limits species? | surroundings + required resources |
| producers (autotrophs) | manufacture food directly from abiotic environment |
| consumers (heterotrophs) | cannot manufacture food, obtain nourishment from biotic environment by consuming other organisms |
| omnivores | eats both producers + consumers, consumes both plant + animal material |
| scavenger | eats dead organisms, do not usually kill own food but instead consume meat of already dead animals |
| detritivores | eats smaller dead animals, dead plant matter + animal feces |
| decomposers | break down bodies of dead organisms + waste products of living things, carry out chemical decomposition by breaking down large, complex molecules to simpler molecules + return to environment |
| purpose of food chain? | shows how energy transfers btwn organisms |
| is energy gained or lost with each energy transfer? | lost |
| first trophic level? | producers |
| second trophic level? | primary consumers (herbivores) |
| third trophic level? | secondary consumers (carnivores) |
| fourth trophic level? | tertiary consumers (top carnivores) |
| Measurement unit in energy pyramids? | KJ |
| What do number pyramids not take into account? | Size of each organism |
| What do biomass pyramids not account for? | Speed of reproduction |
Created by:
lovinglifexoxo
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