Energy Transformation
What percentage of a lower trophic level's energy flows to the next higher trophic level?
10%
When sunlight strikes Earth approximately
30% is reflected back into space
Which of the following is the balanced chemical equation for photosynthesis?
6H2O + 6CO2 -> 6O2 + C6H12O6
Which of the following is not true about energy in ecosystems?
Energy is recycled after flowing through ecosystems.
Which of the following best describes the fate of energy in ecosystems?
It flows through and is used by ecosystems.
Which of the following best describes energy transformations in ecosystems?
Most of the energy collected by an organism is not passed on to other organisms.
The energy value listed for foods refers to the
amount of energy available as fuel for the body
Energy must be transformed in ecosystems because
energy cannot be created or destroyed, an organism's energy must go somewhere, an organism's energy must come from somewhere (all of the above)
Primary productivity is not limited by
time
