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test study guide
invertebrates\vertebrates
| Question | Answer |
|---|---|
| the animal kingdom is divided into how many phyla? | 35 |
| another term for cold blooded animals is called? | ectothermic |
| mollusks have what to breathe with? | gills |
| birds have what? | feathers and beaks |
| one group of amphibians are? | frogs |
| mammals are born what? | live |
| arthropods have what? | jointed legs |
| segmented worms have a long what? | digestive tube |
| worms take in oxygen and water threw what? | their skin |
| echinoderms have what that stretches outward? | arms |