Wake-up 1.Explain the difference between a primary consumer and a producer. 2.Which model, food...
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Wake-up 1.Explain the difference between a primary consumer and a producer. 2.Which model, food chain or food web, is a better depiction of what happens in nature? Explain.
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Transcript of Wake-up 1.Explain the difference between a primary consumer and a producer. 2.Which model, food...
Wake-up
1. Explain the difference between a primary consumer and a producer.
2. Which model, food chain or food web, is a better depiction of what happens in nature? Explain.
Two Laws that Allow Ecosystems to Function: #1
The Flow of Energy
The Sun is the ULTIMATE source of
energy for living things
Two Laws that Allow Ecosystems to Function: #2
The Cycling of Nutrients
Nutrients = Water, Carbon, Nitrogen, Sulfur, Phosphorus
Basic Elements of Life
Remember: CHNOPS
C = Carbon H = Hydrogen N = Nitrogen
O = Oxygen P = Phosphorus S = Sulfur
Four Main Nutrient Cycles Water: H2O
Four Main Nutrient Cycles Carbon: C
Four Main Nutrient Cycles
Nitrogen: N
Four Main Nutrient Cycles Phosphorus: P
How are nutrients (matter) cycled?
Through living and non-living factors.
Matter cannot be created or destroyed,
but can be rearranged.
Why are nutrients cycled?If the earth doesn’t recycle these nutrient then
they will run out
Hydrologic (Water) Cycle: What?Circulation of Earth’s water
Water cycle: Why?
Water is a major part of every living
thing.
Water is LIFE
Water cycle: Components
Transpiration: Plants release
water
Evaporation:Liquid to Vapor
Precipitation: Rain, sleet, snow
Runoff:Water moves across surfaceInfiltration:
Absorb water
Condensation:Vapor to liquid
Watch Video
Water cycle: ProblemsCirculation of Earth’s water
Watch Video
Carbon Cycle: What?
Movement of carbon between
organisms and their environment
Carbon Cycle: Why?
Carbon makes up ALL living things; organic matter
Carbon Cycle: SummaryAtmospheric CO2 converted into carbohydrates
by producers
Carbon Cycle: SummaryCarbohydrates are consumed by organisms
Carbon Cycle: SummaryCarbon is returned to the atmosphere through
respiration, decomposition…..
Carbon Cycle: SummaryAnd by burning fossil fuels
Watch Video
Nitrogen Cycle: What?Circulation of nitrogen between organisms and
the environment
Nitrogen Cycle: Why?Main part of nucleic acids (DNA, RNA, ATP) and
proteins
Nitrogen Cycle: ComponentsTricky thing….
Nitrogen has to be “fixed” to be used by organisms
Nitrogen Cycle: ComponentsWays to fix…
Lightning strikes
Nitrogen Cycle: ComponentsWays to fix…
Bacteria
Nitrogen cycle: Diagram
Fertilizer
Nitrogen fixing
Watch Video
Video explaining the Nitrogen cycle. It will have big words in it, but that just shows how detailed this process is.
Watch Video
