February 8, 2010 What is the difference between a detritivore and a decomposer? What’s an example of each? What happens to the amount of energy and biomass.

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Presentation transcript:

February 8, 2010 What is the difference between a detritivore and a decomposer? What’s an example of each? What happens to the amount of energy and biomass as you go up in trophic level? Why?

Plankton Microscopic World Daphnia

Q: How do nutrients get cycled in the biosphere? Biogeochemical cycles: “bio”= living “geo” = geological (earth) processes chemical

DID YOU KNOW? Water is the ONLY substance found on earth NATURALLY in 3 forms (solid, liquid, & gas)! People can only live a few days without water… most likely, less than 1 week!

~20% of the fresh water on earth = our great lakes DID YOU KNOW? ~60% of your body = water ~70% of the earth = water ~20% of the fresh water on earth = our great lakes

The average depth of the ocean = several THOUSAND FEET! DID YOU KNOW? The average depth of the ocean = several THOUSAND FEET! (1 mile = 5280 feet) Several BILLION GALLONS of water is sitting on shelves in stores or our homes!

~2% of the earth’s water is suitable to drink DID YOU KNOW? ~2% of the earth’s water is suitable to drink It is possible for you to drink water that was part of the dinosaur era. WATER IS CONSTANTLY RECYCLED! THE AMOUNT OF WATER ON EARTH DOES NOT CHANGE!!!!

DID YOU KNOW? The average person uses 100 gallons a day. 2-7 gallons per flush 15-25 gallons per shower 9 -12 gallons to run a dishwasher

Water, Nitrogen, & Carbon Cycles lightning/precipitation burning wood precipitation food chain bacteria/plants waste evaporation decomposing (dead things) seepage denitrifying bacteria root uptake fertilizer condensation photosynthesis transpiration Draw ONE picture that shows ALL the cycles. Arrows different colors, 1 color per cycle LABEL YOUR ARROWS!

3 Main Cycles: Water, Carbon, & Nitrogen