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Dinoflagellate
The dinoflagellates are a large group of flagellate protists. Some species, called zooxanthellae, are endosymbionts of marine animals and protozoa, and play an important part in the biology of coral ... > more -
Cuttlefish
Cuttlefish are animals of the order Sepiida, and are marine cephalopods, small relatives of squids and nautilus. Cuttlefish have an internal shell, large eyes, and eight arms and two tentacles ... > more -
Symmetry (biology)
Symmetry in biology is the balanced distribution of duplicate body parts or shapes. The body plans of most multicellular organisms exhibit some form of symmetry, either radial symmetry or bilateral ... > more
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