Friday, May 14, 2010
Fri-Day 2
Bio - We reviewed and discussed examples of the three types of symbiotic relationships:
mutualism, commensalism, and parasitism.
Then, we discussed food chains and food webs, which show the flow of nutrients and energy throughout an ecosystem among its organisms. A given food chain shows that nutrients/energy flows from producers (autotrophs=plants and algae) as they are eaten by primary consumers/herbivores and sometimes omnivores; then nutrients/energy flows from primary consumers to secondary consumers (carnivores/omnivores) as they eat the herbivores. Ultimately, when producers, primary consumers, and secondary consumers die, their nutrients are broken down and recycled into the ecosystem by the decomposers.
BRING IN YOUR REVIEW BOOKS FROM HERE ON IN. We will be reviewing test skills as we do questions for this dual unit and then be using the book for review hw.
mutualism, commensalism, and parasitism.
Then, we discussed food chains and food webs, which show the flow of nutrients and energy throughout an ecosystem among its organisms. A given food chain shows that nutrients/energy flows from producers (autotrophs=plants and algae) as they are eaten by primary consumers/herbivores and sometimes omnivores; then nutrients/energy flows from primary consumers to secondary consumers (carnivores/omnivores) as they eat the herbivores. Ultimately, when producers, primary consumers, and secondary consumers die, their nutrients are broken down and recycled into the ecosystem by the decomposers.
BRING IN YOUR REVIEW BOOKS FROM HERE ON IN. We will be reviewing test skills as we do questions for this dual unit and then be using the book for review hw.
# posted by C @ 11:34 PM 
