BIOLOGY 287 Study Guide - Midterm Guide: Tea Bag, Eukaryote, Estuary
17 Nov 2014
School
Department
Course
Professor
Document Summary
: some organisms produce them within protoplasm, which gives them greater: oil droplets buoyancy (oil has lower density than water, most fish have swim bladders to regulate buoyancy, they can fill or empty with co2, allowing to rise/sink in water column, temperature and viscosity have impact on organisms, cold water more viscous, easier to float in, harder to swim in, for plankton, problem of maintain position in the water column is more difficult in sunlit surface waters of low to mid latitudes because warm waters are less dense and less viscous than cold waters. : new growth in biomass created by photo/chemosynthesis: vast majority of productivity in ocean is result of photosynthesis by microscopic, single celled algae, phytoplankton, other producers are cyanobacteria in near surface waters and multicellular benthic algae, not all productivity driven by sunlight; bacteria at hydrothermal vents and hydrocarbon seeps on seafloor produce organic molecules by chemical reactions (instead of sunlight) as energy source.
