Chapter headings: Introduction. Counting, algebra and periodicity - the roots of mathematics are the roots of life. Nodal surfaces of tetragonal and hexagonal symmetry, and rods. Nodal surfaces, planes, rods and transformations. Motion in biology. Periodicity in biology - periodic motion. Finite periodicity and the cubosomes. Cubic cell membrane systems/cell organelles. Cells and their division - motion in muscles and in DNA. Concentration gradients, filaments, motor proteins and again - flagella. Transportation. Icosahedral symmetry, chathrin structures, spikes, axons, the tree, and solitary waves. Axon membranes and synapses - a role of lipid bilayer structure in nerve signals. The lung surface structure and respiration. Epilogue. Appendices.