Perch have paired pectoral and pelvic fins, and two dorsal fins, the first one spiny and the second soft. These two fins can be separate or joined.
Most of the energy is converted to heat, I think.......... Hope it helps, Have a nice day :)
I believe it's lipids and carbohydrates, carbohydrates storing energy as glycogen.
The result of non-reproduction is simple.
There will not be another generation of a species. Without a new generation, the parents would die off, and there would be nothing to carry on the name they had both shared.
Hope this helps! ( °ω° )