BIOL 102 Lecture Notes - Lecture 40: Body Shape, Information Transfer, Vacuole
Document Summary
Chapter 40: basic principles animal form and function. Anatomy: the scientific study of the biological form exhibited by an organism; structure. Physiology: the scientific study of the biological processes in an organism; function. The comparative study of animals reveals that form and function are closely correlated. Seal vs. penguin vs. tuna (hydrodynamic form: convergent evolution for fast swimming) Fusiform function comparative analysis exemplified enables functionality. Diffusion single cell works well in hydra for two cell layers, crossing of cell boundaries. Increase in size, diffusion no longer works the best. Increased specialization in organization as functions and structure increase. Surface area increases as a squared function but volume as a cubed function! Larger we get, better ways of capitalization of diffusion. More air vacuole sacs = increased absorption = increases surface area. Absorbing of toxins to get rid of them. Classified through their shapes and assembly of layers.
