What does your nervous system allow?

In strenuous physical activities it is recommended to warm up and cool down ? true or false ?

Anyone who can chat with me right now? i m very bored.

Adrug is tested in the laboratory and is found to create holes in both mitochondrial membranes. scientists suspect that the drug will be harmful to human cells because it will inhibit a) the citric acid cycle. b) oxidative phosphorylation. c) glycolysis. d) the citric acid cycle and oxidative phosphorylation.