starfish

characteristics:

• They do not have gills, scales, or fins like fish do.
• they have tiny tube feet to help them move along 
• There are about 2,000 species.
• they belong to the Phylum Echinodermata.
• another name for them is "sea star"

vertebrates:Animals w/ an internal skeleton made of bone

characteristics of chordates

• Notochord, or a rod of vacuolated cells.
• Hollow nerve cord
• Pharyngeal pouches
• Endostyle

taxonomic information:

distinguishing characteristics:

• The appendages, or arms, of a starfish give him his unique star shape
• theyre not actually fish.
• Starfish skin is covered in tiny spines that look like small lumps to the naked eye.
• These spines help keep a starfish clean.
• The organ pumps water throughout the starfish's body, helping him to move.

general characteristics:

• Instead of eyes seeing objects, a starfish has eyespots that sense light. 
• The mouth is not quite the same as the oral cavity on most animals.
• the starfish pushes his stomach out through his mouth to eat.
• He has one eyespot at the end of each arm that looks like small dot 

examples/ pictures

unique stuctures

all structures:

• tubed feet
• the eat from where they use the bathroom

resourses of information