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Casteel Invertebrate
Invertebrates
Term | Definition |
---|---|
Invertebrates do not have a ____________________. | backbone |
A little over 95% of animals are __________________. | invertebrates |
The _________________ invertebrates are sponges, corals, and jellyfish. | simplest |
_____________ have a shell that protects their soft bodies. | Mollusks |
Squids have an __________________ shell. | internal |
An _____________________ has no shell. | octopus |
Examples of ______________ are sea urchins and sea stars. | echinoderms |
Echinoderms live in _____________ water. | salt |
Echinoderms have body parts in multiples of ______. | five |
__________________ have body parts in segments. | Arthropods |
Arthropods include _______________, spiders, and insects. | crustaceans |
Crustaceans have a hard __________________ shell. | exterior |
Crustaceans have five ____________ of jointed limbs. | pairs |
Spiders have __________ body segments. | two |
Spiders have _____________ legs. | eight |
_______________ have antennae, jaws, and three body segments. | Insects |
There are more insect species on ____________ than all other animal species combined. | Earth |