At the end if glycolysis, how much of the chemical energy in glucose is still unused?

Which feature of a human community is similar to a niche in a biological community

Ascience research group is testing a new type of plant food. one trial is conducted in a controlled experiment. the data from the trial show that the plant that received the new food grew faster than the control plant. the group announces that the new plant food makes plants grow faster. what is the main weakness in this scientific claim?

Describe characteristics of a good respitory surface