BIOL 123 Lecture Notes - Lecture 17: Mitosis, Decomposer, Herbivore
Document Summary
Every last animal shits rocks and opistakonta. Protists display four basic types of nutrition. Protists populatiosn increase by means of asexual reproduction. Hetertrophic protists that feed by ingesting particles or. Rely on osmotrophy- the uptake of small organic molecules. Decomposers across the cell membrane followed by their digestion. Protists that feed on nonliving organic material. Essential in breaking down wastes and releasing minerals for use by other organisms. Feed on the living cells of other organisms that may cause dieases (pathogenic) Can make their own organic nutrients from inorganic sources by harvesting light energy. Able to use photautotrophy and phagotrphy or osmottrophy to obtain organic nutrients. Major types include cell coverings, sharp projectiles that can be explosively shot. Slimy mucilage and spiny cell walls provide an protectiong from attack by from cells, light flashes and toxic compounds herbivors or pathogens also cell ceovering f cellulose or minerals like silica is effective against osmatic damage.
