Which is true if energy in ecosystem

Advances in technology have enabled scientists and researchers to better study the evolutionary relationships between species

Lola needs to sign 6 invitations. using stopwatch that measures time to tenths of a second, it takes lola 5.3 seconds to sign her full name. going by the accuracy of the stopwatch, which is the most accurate determination for the number of minutes lola needs to sign all 96 invitations

Which process in respiration happens first? a)pyruvate processing b)electron transport chain c)krebs cycle d)glycolysis