Unformatted text preview: (diplo=two; poda=foot) o Millipedes (8,000 species) 1. Two pair of legs per body segment 2. Feed on decaying organic matter Class Crustacea (crust=hard; shell-like) o Lobsters, crabs, shrimps (26,000 species) 1. Branched appendages 2. Aquatic (Marine equivalent of insects) Class Arachnida (arachne=spider) o 57,000 species 1. No antennae 2. Two body segments 3. Terrestrial 4. Carnivorous Class Insecta (in=into; sect=sect) o 1,000,000 species*( KNOW!) 1. Three body segments (head, thorax, abdomen) 2. Six legs 3. Most adults have wings 4. Two antennae 5. Breathe through openings in body 6. Terrestrial or aquatic *Only invertebrates that can fly*...
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- Spring '11
- Entomology, body segments, eat small arthropods, insect cells, Plylum Arthropoda