Energy Flow in Organisms CER
Scenario
The diagram below shows the cycle of energy within an ecosystem containing a papaya
tree and a toucan. The toucan’s daily diet consists of about four papayas and a variety
of nuts, which provides for most of its nutritional needs. A disease has infected the
papaya tree population causing the papaya fruit to produce less stored glucose.
External Data
Prompt
Write a scientific explanation to describe the impact of the infected papaya trees on the
toucan population. Use evidence and reasoning to support your claim.
Possible Sentence Frames (Optional)
If the papayas are infected, the toucan population will… Evidence to support my claim
is… This evidence supports my claim because… Another piece of evidence to support
my claim is… This evidence supports my claim because…
Write your answer below: