Normally a 10× drop for each trophic level, so I'd say 2,000 kilocal.
Answer:
Mendel was a mathematician and a physicist. He was tutored by Christian Doppler known for his work "Doppler effect of wave frequency".
Mendel learned botany under Franz Unger.
Both knowledge of science and math helped him notice some patterns, traits and qualities in the gardens he had.
With that idea, he was able to see the chances or portability of developing such traits and how to prove it.
I suggest the easiest bat to study for your report are Vampire Bats
C "fatty acids" is your answer