Friday, May 18, 2012
Fri-Day 2
Bio- we discussed the flow of
energy among organisms in an ecosystem. This energy flow is easily seen
in a food web. A food web uses arrows to show the flow of energy, which
is stored in the molecules that make up the organism, from producers
(plants and algae) to primary consumers (herbivores) to secondary
consumers to tertiary consumers and sometimes even beyond that.
AP Chem - continued our qualitative analysis procedures.
Going
from producer level to primary consumer level and beyond, the total
energy of each subsequent level decreases due to the fact that 90% of
the energy consumed is lost/released as heat so only 10% can be stored
as potential energy in the molecules that makeup the organisms in a
given level.
AP Chem - continued our qualitative analysis procedures.