Bell Ringer  YOU HAVE A QUIZ!  5 MINUTES TO STUDY!!!  QUIZ EACH OTHER BUT KEEP IT DOWN!  CLEAR YOUR DESK, BLANK SHEET OF PAPER, NAME/DATE/PERIOD

QUESTION 1 & 2  1. THE ULTIMATE SOURCE OF ENERGY IS THE __________.  2. WHAT DOES AN OMNIVORE EAT?

QUESTION 3  3. WHAT DOES A DECOMPOSER DO?

Questions 4 & 5  4. NAME A SECONDARY CONSUMER  5. WHAT WOULD HAPPEN IF THE SNAKES DIED?

QUESTION 6 & 7  6. HOW MUCH ENERGY IS PASSED TO THE NEXT TROPHIC LEVEL?

QUESTION 7  7. Identify the types of symbiosis

QUESTION 8  Symbiotic relationships are those in which two different types of organisms live in close association with each other. Which of the following symbiotic relationships demonstrates parasitism? a) The small fish, remora, attaches itself to the underside of a shark and feeds off of the scraps from the shark's meal. The shark is unaffected by the remora. b) Heartworms inside a dog's heart have a protected environment in which to live and reproduce. The heartworms can cause illness and death for the dog.

 Carbon/Nitrogen Cycles

Agenda  Quiz  Essential Question  Notes  Exit Ticket

Essential Questions  How does matter and nutrients move through the ecosystem?

Matter  Anything that takes up space  Matter cannot be created or destroyed    (law of conservation)  Therefore... It must be RECYCLED by….  DECOMPOSERS

NUTRIENTS  Are needed by organisms in order to substain life  Recycled through biogeochemical cycles  The bodies of all organisms are built from  C- CARBON  N- NITROGEN  P- PHOSPHORUS

THE CARBON CYCLE  CARBON  Element Number 6  All living things are composed of CARBON  18% of Humans

CARBON- It gets around  1- During photosynthesis plants convert CO2 (carbon dioxide) to carbohydrate.  2 – These carbohydrates are the ENERGY at trophic levels.  3- When organisms die, decomposers break down materials and convert C to fossil fuels.

CARBON- It gets around  4 – When you breathe, carbon is released into the atmosphere  5– CO2 may be absorbed by water and released to the environment  6– FOSSIL FUELS are burned released back into the environment

Nitrogen (N) Cycle  Nitrogen is found in proteins  Largest concentration of gas in atmosphere (78%)  3% of Humans  Organisms cannot use nitrogen on their own SO…

Nitrogen Fixation  Process by which bacteria capture and convert N so its usable for plants  Consumers get N by eating plants or Primary Consumer  Primary Consumers use N to make proteins- essential for life

Nitrogen- It gets around  1– Nitrogen in ecosystem converted by bacteria, is useful for plants  2- Consumers eat plants  3- Consumers urinate (waste) and/or die

Denitrification  4-Denitrification- Bacteria convert Nitrogen (N) in soil back to atmospheric Nitrogen (N)  5- Atmospheric N is added back to water and soil

Water Cycle  Who can tell me the key terms for the water cycle?

The Water Cycle  Water Cycle Song Water Cycle Song

Exit Ticket  11. Where is the largest concentration of nitrogen found?  A. animals  B. atmosphere  C. bacteria  D. plants

Bell Ringer  What are the two major life processes that involve carbon and oxygen?  A. coal formation and photosynthesis  B. photosynthesis and respiration  C. fuel combustion and open burning  D. death and decay

Exit Ticket  What is dentrification?