Chitin poses a problem. And unless I can wiggle out of the problem, I am stuck.

One possibility is that calcium for animals is linked with the electrical system
in animals in that you cannot get the fast motion with large mass unless it was
calcium based. Chitin based is okay for tiny mass.

Not sure whether I can wiggle out of this.

One possibility is that there are 5 Kingdoms. One with a calcium framework (animals
of large mass) another with a carbon framework (plants), another with a chitin
framework (animals of small mass), and the last 2 with no framework.

I wiggle out of the problem be calling low mass animals with chitin their own
kingdom.

I mean, in physics we have the 5 basic forces-- Coulomb, StrongNuclear,
WeakNuclear, gravity, and antigravity. So, I wiggle out of this jam by giving
the chitin animals their own kingdom.

Don't know if I like that solution as of yet.

Archimedes Plutonium,
whole entire Universe is just one big atom where dots
of the electron-dot-cloud are galaxies