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Invertebrates Part 1

Horizontales
a type of body plan symmetry in which the body can be divided equally along only one plane
animal development type in which the animal's anus develops before the mouth
tube-shaped body form of a cnidarian in which the mouth and tentacles face upward
animal without a backbone
a type of body plan symmetry in which the body can be divided equally multiple times into planes along a central axis
saclike digestive space (2 words)
the tissue layer that covers the outside of an organism
open space between cells in animal tissues
the tissue layer that develops into internal tissues and organs of an organism
fluid-filled space that is completely covered by muscle
Verticales
animal with an internal segmented backbone
genes that control early development in animals
having a body derived from only two embryonic cell layers (endoderm and ectoderm)
having a body derived from three embryonic cell layers (endoderm, ectoderm, and mesoderm)
filelike feeding organ found in mollusks
umbrella-shaped body form of a cnidarian in which the mouth and tentacles are on the underside
capsule containing a thin, coiled tubule with a poisonous barb at one end
animal development type in which the animal's mouth develops before the anus
three-stranded protein, unique to animals, that combines to form strong, flexible fibers
the tissue layer that covers the inside of an organism
jellylike material that separates the two tissue layers of a diploblastic organism