Gene realizes he can do what Finny could do, so Finny is no longer impressive to him.
Finny may appear small and old to Gene because Gene has just had a transformative experience and his perception of Finny has shifted. This could symbolize Gene seeing Finny in a new light, perhaps with more understanding or empathy. It also suggests that Gene's focus is now on his own abilities and growth rather than on comparing himself to Finny.
Lipids are stored by the body as energy reserves
In running that typically means that you've exhausted all of your energy reserves and are PHYSICALLY unable to go any further.
It means to spend your savings. For example, it could mean using the last bit of energy you have to finish running a marathon.
1
proteins
fat cells
Its fat reserves.
eat biscuits and cheese for energy when energy runs out the timer finishes
Their energy reserves are stored in lipids.
natural gas reserves
Triglyceride
NO