Which numbered organelle produces atp during cell respiration? a) 1 b) 7 c) 9 eliminate d) 13

How can a geological time scale best be reconstructed? a) comparing vestigial structures in living species b) comparing homologous structures in living species c) examining homologous structures in fossil remains d) examining the written records of scientists from past cultures

I’m stuck on this question cuz i’m stupid sksksksk

How energy flows through each level in this energy pyramid. is all the matter and energy from one level transferred to the next level?