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The "Tables of Ranks" Emphasized That

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The "Tables of Ranks" emphasized that


Definitions:

Germ Layers

The three primary layers of cells (ectoderm, mesoderm, and endoderm) in the early embryo that develop into all organs and tissues of the body.

Lophophore

A unique feeding structure bearing ciliated tentacles, found in certain marine invertebrates such as bryozoans and brachiopods.

Arthropods

A diverse group of invertebrate animals with exoskeletons, segmented bodies, and paired jointed appendages, including insects, arachnids, and crustaceans.

Antheridia

Male reproductive structures in ferns, mosses, and some algae, which produce and release sperm.

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