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Science 12.2

Across
The worms with the simplest of bodies.  They are usually parasites
able to move, not sessile
The most famous segmented worms
invertebrate, tentacle wielding animals found only in water. They include jellyfish, coral, sea anemones, and hydras.
what a larva matures into after it settles down
(two words) The place where food enters and waste exits the body
A mature jellyfish that reproduces sexually
a capsule that holds a barbed filament. Found inside the stinging cells of some tentacles
a form of reproduction usually conducted by sessile parents
The type of symmetry that describes a body plan wherein there is only one line of symmetry that can be drawn down the body.
Down
produced by muscle cells that run along the side of the body
An organism that has both sets of sexual reproduction organs
The type of symmetry that describes a body plan wherein the body is organized around a central point.
Some of these worms are decomposers
fingerlike extensions of a body that can reach out into the water.
A.k.a. “segmented worms”. Their bodies are divided into individual compartments.
results from free swimming sperm reaching, and fertilizing, an egg.