Cycles and Feeding Relationships and Ecosystems

Carbon Cycle

• Photosysthesis is the only process that lets Carbon Dioxide in.
• Animals eat plants which passes carbon compounds.
• Plants and animals respire which releases Carbon Dioxide in the air.
• Plants and animals eventually die and decompose and are broken down by bacteria and fungi. These decomposers release Carbon Dioxide in the air by respiration.
• Fossil Fuels have also been burnt which releases Carbon Dioxide in the air.

Nitrogen Cycle

• Decomposers- break down of protiens and turn them into ammonia
• Nitrifying Bacteria-turning ammonia in decaying matter into nitrates
• Nitrogen-fixing bacteria- turn Nitrogen gas into nitrogen compunds.
• Denitifying bacteria- turns Nitrates back into Nitrogen gas.

Pyramids of Numbers, Biomass and Energy

• Producers - Primary Consumers - Secondary Consumers…