Glycolysis and gluconeogenesis are reciprocally regulated by a common regulator, fructose-2,6-bisphosphate. Levels of fructose-2,6-bisphosphate are regulated by:

What is an animal that lives by preying on other animals

Adigestive system that is a series of tubes beginning at the mouth and ending at the anus is a digestive system.

What molecules will be best used to compare different species with the exact same sequence of amino acids? why would two species have the same protein even if the molecules in question is different? (hint: transcription to translation to protein).