Unit #1- Ecosystems Flashcards
Difference between photosynthesis and cell resp.
Photosynthesis: autotrophs (producers) capture sun energy and store as glucose
Cell resp: all organisms (plants and animals) go through this process to use energy stored food
Photosynthesis equation
6CO2(g) + 6H2O(l) + sunlight =
C6H12O6(s) + 6O2(g)
Cell resp equation
C2H12O6(g) + 6O2(g) = 6CO2(g) + energy + 6H2O
Reactants ~> products
3 components of the biosphere
Hydrosphere (water)
Atmosphere (air)
Lithosphere (land)
Population
A group of the same species in an area
Community
Group of different species coexisting together in an area
Abiotic
Non living things
Ex. Rocks
Biotic
Living organisms/species
Ex. Plants, animals
Herbivores
Eat plants
Ex green turtle
Omnivore
Eat both plants and meat
Ex. True crabs
Carnivore
Meat eaters
Ex. Blacktip reef shark
Producers
Autotrophs
Are at the bottom of the food chain/and first trophic level
Make their own food
Have 100% of the energy
Ex. Plants
Consumer
Heterotroph
Cannot make their own food
Feed on the producers or whatever is below them in the food chain
Decomposers
Are any organisms that breakdown or decompose dead organisms
Ex. Bristle worms 
Primary consumer
2 trophic level organisms that feed on the producers
Secondary consumer
3rd trophic level
Rely on primary consumers for their energy source
(Can extend to more levels)
Tertiary consumer
Energy of the trophic levels
Producers 100% = level 1
Primary consumers 10% =level 2
2nd consumers 1% =level 3
3rd consumers 0.1% =level 4
4th consumers 0.01% =level 5
Water cycle
Movement of water through the biosphere.
water reaches earth as **precipitation
then **evaporates by absorbing energy from the sun becoming water vapour
which then will rise until it reaches a point where it will cool enough to condense and become liquid again
plants play a role in recycling water through **transpiration (plant sweating)
the freshwater we use comes from groundwater and surface water water filters downward into the ground through **percolation
Transpiration
Lots of water from plant leaves
Evaporation
Changing from liquid to gas
Precipitation
Snow, sleet, rain, hail
Percolation
Movement of a solid through a porous material (soil)
Leaching
Removal of a solute by percolation (filter)
