| Term | Definition |
|---|
| the number and structure of their body segments and appendages-particularly their mouthparts | Arthropods are classified based on... |
| crustaceans | _______________ are primarily aquatic |
| crabs, shrimps, lobsters, crayfishes, and barnacles | the subphylum crustacea includes |
| crustaceans | _____________ typically have two pairs of antennae, two or three body sections, and chewing mouthparts call mandibles |
| two pairs of antennae, two or three body sections, and chewing mouthparts called mandibles | crustaceans typically have... |
| crayfish | The ___________ has a body that is typical of many crustaceans |
| cephalothorax | the anterior ___________ is formed by fusion of the head with the thorax |
| thorax | the ________ lies just behind the head and houses most of the internal organs |
| abdomen | the _____________ is the posterior part of the body |
| arthropoda | crustaceans are a subphylum of the phylum _______________ |
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