Coral Reefs Crossword

animals in the phylum cnidaria; they have radial symmetry, tissue level organization
the living together in close association of 2 different species
particles of dead organisims
dinoflagellates that live within animal tissue
process by which green plants & some other organisms use sunlight to synthesize foods from carbon dioxide & water
small & microscopic organisms drifting/floating in the sea or fresh water
a free-swimming sexual form of a coelenterate such as jellyfish
solitary/ colonial sedentary form of a coelenterate such as a sea anemone
single-celled planktonic animal with a perforated chalky shell through which slender protrusions of protoplasm extend
branching reddish seaweed with a calcareous jointed system
a conical structure of calcareous plates & muscles supporting the rasping teeth of a sea urchin
sedentary aquatic invertebrate of the phylum, Bryozoa, which comprises the moss animals
a wind blowing steadily toward the equator from the northeast in the northern hemisphere or the southeast in the southern hemisphere , especially at sea
the gradual craving in or sinking of an area of land
the chemical process by which atmospheric nitrogen is assimilated into organic compounds