|Hermit crabs carry salvaged empty ____ for protection.
|Some centipedes and millipedes have over a hundred ____.
|Swamp, marsh, bog, and fen are the main types of ____.
|Sea anemones are marine animals that look like ____.
|The favorite food of starfish in tidal pools is ____.
|Cobras and vipers have ____ that inject venomous saliva.
|Animals without a backbone (such as insects) are ____.
|All insects have a three-part body, six legs, and a pair of ____.