BIOL 1201 Chapter : NOTES FINAL
Document Summary
The ocean: three-quarters of the planet is covered with water, the average depth of the ocean is 3800 meters, for every 10 meters depth increase, pressure increases 1 atm. Deep-sea species: have characteristic depth distribution patterns which may be affected by pressure. Pressure: acts on volume changes, of the entire solute-solvent system. Free vehicles: not attached to vessel, e. g. , "monster" cameras. Deep submergence vehicles: e. g. , johnson sea link, alvin. Hov alvin (human occupied vehicle: owned by the u. s. navy and operated by woods hole oceanographic. 1: 1966 recovered a hydrogen bomb lost in the mediterranean sea, explored the hydrothermal vents; surveyed the titanic. Rattails: these fish belong to the family macrouridae and are the predominant deep-sea teleost (boney) fish family, also have the common name of grenadiers. What are first messengers: extracellular chemical signaling molecule called the ligand, binds to the membrane receptor, epinephrine, hormones. 2: depends on the summation of all the positive and negative signals on that cell.
