Label each organism in the above food web: producer, primary consumer, secondary consumer, Tertiary consumer, herbivore, carnivore, omnivore.

Starter 10-2-081. Name abiotic factors that get cycled

through ecosystems.2. Name the cycles that you know and describe

them.

Starter1. Name the 5 abiotic factors that get cycled through

ecosystems.

2. Name the 4 cycles we talked about.

3. How do animals and plants support life for each other? Name the two processes.

4. List what puts CO2 into the atmosphere. What takes it out?

5. Describe three roles that bacteria play in the nitrogen cycle.

6. Starting with N2, explain where it goes and what does the cycling along the way.

7. Starting with a snowflake. Explain the water cycle.

8. How does the phosphorous cycle differ from the other cycles (2 ways)?

9. Why is the phosphorous cycle necessary?

Cycles3 steps

Producers abiotic factors organic compoundsConsumers Producers then… #1 and #2Decomposers inorganic raw materials

WaterCarbon – oxygenNitrogenPhosphorous

By the end you will be able to diagram and explain them.

Water – Who are the actors?Ground Water

H2O found in the groundEvaporation

Liquid Gas Warm

Transpiration Liquid gas from plants

Water Vapor Gaseous H2O

Condensation Gas liquid Cold

Precipitation Water returning to the ground

Rain, sleet, snow, hail, etc…Runoff

Precipitation that is not absorbed and runs off into a ground water source

Carbon and Oxygen – Living Players

ProducersOrganic compounds from inorganic supply

Photosynthesis CO2 + H2O Suns energy C6H12O6 + O2

Recycled via Cellular Respiration

C6H12O6 + O2 CO2 + H2O Decomposition

Carbon and Oxygen – Nonliving Players

Fossil fuelsCO2

Burning of WoodNaturalHuman

Geologic EventsVolcanic eruptions

Cellular Respiration and

Decay

PhotosynthesisCO2

in Atmosphere

Combustion of fossil fuels

Volcanoes

Forest Fires

Fossil Fuels

Cellular Respiration and Decay

NitrogenAmino acids, proteins, nucleic acidsAtmosphere ~80% Nitrogen (N2)

Not helpful Can’t use N2 gas

If not N2, then what?Ammonium (NH4+) Nitrate (NO3-)

How do we get there?

Nitrogen CycleN2 in the atmosphere

1.Nitrogen fixation Bacteria N2 Ammonia (NH3)

Found in the soil Picks up a H to create Ammonium (NH4+)

2.Nitrification Bacteria NH4+ nitrates (NO3-)

Producers ammonium (NH4+) and nitrates (NO3-)Consumers N in organic moleculesDecomposers wastes and decaying bodies ammonium

(NH4+) back to the soil

3.Denitrification Bacteria nitrates (NO3-) N2

Phosphorous Cycle

Nucleic Acids, cell membranes, ATP, ect…Doesn’t occur in the atmosphereFound only as PO4

3- Decomposition

Waste and dead organismsWeathering of rocksFertilizers

Phosphorous CyclePlants

Absorb free inorganic PO43- in the soil or water

Create organic compoundsConsumers

Eat producers and create organic compounds from by breaking down plant tissues

DecomposersBreakdown waste and dead organisms

Releases inorganic PO43- back into the water or soil

Assimilation by plant cells

Weathering of rock

Phosphates in soil

Phosphates in solution

Decomposition by fungi and

bacteria

Urine

Animal tissues and feces

Plant Tissues

Loss in drainage

Incorporation into sedimentary rock; geologic uplift moves this rock into terrestrial

environments

Starter 1-22-081. Explain how photosynthesis and respiration

are involved in cycling carbon and oxygen.2. List what inputs CO2 into the atmosphere.

3. Describe three roles that bacteria play in the nitrogen cycle.

4. Starting with N2, explain where it goes and what does the cycling along the way.

5. Follow a raindrop through one possible path through the water cycle, ending as it is today, snow!!