Wednesday, May 12, 2010
Wednes-Day 2
Bio - we reviewed the abiotic factors/selecting agents, which are also some of the LIMITING FACTORS/resources in an ecosystem; we also reviewed the requirements for a stable ecosystem.
We then classified the various types of biotic factors by their nutritional relationships:
in an ecosystem, the AUTOTROPHS, e.g. green algae and plants, are the only organisms that can trap and store light energy in the bonds of glucose via photosynthesis; thus they make their own "food"/nutrition/carbohydrates.
ALL other organisms in an ecosystem are heterotrophs that obtain nutrition by consuming and absorbing nutrients from other heterotrophs and autotrophs.
We then classified the various types of biotic factors by their nutritional relationships:
in an ecosystem, the AUTOTROPHS, e.g. green algae and plants, are the only organisms that can trap and store light energy in the bonds of glucose via photosynthesis; thus they make their own "food"/nutrition/carbohydrates.
ALL other organisms in an ecosystem are heterotrophs that obtain nutrition by consuming and absorbing nutrients from other heterotrophs and autotrophs.
# posted by C @ 11:16 PM 
