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Science Project Puzzle

Across
Made up of one or more cells
An irregular shaped animal
Organized like spokes on a wheel
division of invertebrate animals with soft, unsegmented bodies
- a vertebrate animal of a class that includes snakes
The offspring isn't identical to its parent
a cold-blooded vertebrate animal
a phylum of aquatic invertebrate
Two sides that mirror each other
A marine invertebrate
a large phylum of worms with slender
a warm-blooded egg-laying vertebrate,and have hollow bones
Down
an aquatic invertebrate
A fertilized egg
a phylum of invertebrates that comprises the flatworms.
a warm-blooded vertebrate animal,that has fur
The offspring is identical to its parents
Hard ,external body that supports the body of an invertebrate
Has a backbone
a large phylum that comprises the segmented worms
Eats other organisms for food and energy
a limbless cold-blooded vertebrate,that has gills