Biomes
Energy Flow
Ecosystems
Human Influence
Nurtrient Cycles
100
Which biome is characterized by having high temperatures and low precipitation?
Desert
100
Define Biomass
Total mass of living plants, animals, fungi and bacteria in a given area
100
Define: habitat
The place where an animal lives
100
Describe and give an example of secondary succession.
Secondary succession is the result of a disturbance to an area that already has soil ex/ flooding, tsunamis, drought
100
What is the process in the human body that produces carbon which is cycled into the atmosphere?
Cellular Respiration
200
Give 3 examples of biotic and abiotic components of the environment.
Abiotic: Biotic: sunlight plants water animals soil bacteria air
200
Why are plants called producers?
They "produce" food in the form of carbohydrates during photosynthesis
200
Describe photosynthesis
The process in which plants convert light energy into chemical energy. CO2 --> O2
200
Describe habitat fragmentation.
The division of habitats into smaller, isolated fragments.
200
Give 2 ways in which carbon is cycled out of the atmosphere?
photosynthesis and ocean mixing
300
What information does a climatograph show?
temperature and precipitation
300
Describe the difference between detrivores and decomposers.
Detrivores - eat bigger chunks of dead organisms Decomposers - eat the left overs of dead organisms
300
Place the following from smallest to largest: ecosystem, population, community, biosphere, organism, species
organism - species - population - community - ecosystem - biosphere
300
What does deforestation result in?
Soil degredation
300
What form is nitrogen stored in the atmosphere?
Nitrogen Gas N2
400
What 2 factors influence the charateristics of biomes
latitude and elevation
400
Only 10% of energy eaten gets passed on - where does the other 90% go?
Cellular respiration, growth and reproduction, waste matter and death.
400
Describe and give an example of commensalism
Commensalism is a symbiotic relationship in which one species benefits and the other species is neither helped nor harmed. Ex/Barnacles and Whales
400
What is one way to help avoid the effects of soil compaction?
Aeration
400
What is the difference between nitrogen fixing bacteria, nitrifying bacteria and denitrifying bacteria?
Nitrogen fixing bacteria: N2 -> NH4 Nitriying bacteria: NH4 -> N03 Denitrigying bacteria: N03 -> N2
500
Which biome has precipitation from 30-85 cm annually and temperatures from -20 to 15 degrees Celcius?
Boreal Forest
500
Describe the difference between food web, food chain and food pyramid.
Food chain - Show the transfer of energy from one organism to another (one species in each trophic level) Food web - models of the feeding relationships within an ecosystem Food pyramid - Shows the energy loss from one trophic level to another
500
Describe the predator/prey relationship
Prey increase - predators increase - prey decrease - predators decrease
500
Describe the effects overexploitation has had on the kelp forests of the north Pacific Ocean.
The overexploitation of sperm whales caused Orcas to start preying on sea otters which prey on sea urchins which prey on kelp. Without sea otters there is nothing to keep sea urchins from devastating the kelp forests.
500
What is the only way to release phosphorus from its stores?
Weathering
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