Group of algae that are the most advanced and have no sigle celled members in their
phylum are phaephyta
The active layer in the sea that is analogous to the canopy of the rainforest called the
photic layer
The kingdom plantae is represented in the ocean by grasses and mangroves
Primary productivity can be measured from satellites by sensors that detect
chlorophyll concentrations
An atoll may best be described as a coral reef surrounding a lagoon
Diatoms produce frustules shells composed of silicon dioxide
Living organisms that consist of single cells no nucleus and no internal membranes
are called prokaryotes
The most sophisticated frequency-varied sound production in the cetaceans
originates in the vestibular sacs beloiw the blow hole
The oxygen composition depth is the depth at which primary net productivity is
zero
Bacteria have cell walls composed of polysaccharides and amino acids
The zone of lighted ocean in which marine autotrophs tap more energy then they
use to stay alive is called the euphotic zone
Hyperthermophillic bacteria found associated with deep sea hydrothermal vents are
chemo sytheetic bacteria
Mosty biologists and geologists now think life began on earth about 3.5-4.2 bil years
ago
The main inorganic nutrients that are necessary for the success of marine autoitrops
are nitrates and phosphates
The phylum ciliophora of the protozoa include the importatnt zooplankters
tintinnids