BIO202H5 Lecture Notes - Lecture 6: Turbulence, Cichlid, Fictitious Force
Document Summary
What are feeding challenges for small animals: see figure 8. 6, when we talk about size, they end up being suspension feeders they use sieve mechanism or filtration mechanism. When you move faster you create a turbulence and you are breaking the layer up. You have closer contact with nutrients that your body needs. How fast the organism moves depends on the water current moving through the environment. We often do not think about life that is different from us and how tiny organisms operate different from us. There are completely different pressures when you are tiny: on the opposite scale if we are thinking about larger animals, we have a lot of mass and it takes a lot of force to move that mass. We are limited by that inertial force than the viscosity of water column. When we move through water column we are creating a lot of turbulent flow. They can increase the rate they move their cirri.
