| A | B |
|---|
| crustaceans | invertebrates with 5 pairs of legs and 2 pairs of antennae |
| mollusks | Invertebrates with a soft body and a mantle |
| insects | arthropods with 3 body sections, 3 pairs of legs, and sometimes wings. |
| starfish | an echinoderm |
| stinging cells | an organism made of 2 layers, shaped like a bag, with poisonous tentacles. |
| arachnid | Invertebrate with 2 body parts and 4 pairs of legs |
| centipedes | They have a segmented body with 2 legs on each segment. |
| roundworm | a tube-shaped organism that has 2 openings and eats dead plants and animals |
| millipedes | They are segmented with 4 legs on each segment. |
| sponge | an ocean invertebrate with no organs and many pores |
