Movement
The live arms of the starfish move it along.
Respiration
The starfish allows for oxygen to be taken
from the water directly to the cells of the body.
Protection
It feels prickly.
Support
The spiny skin on the outside
of the body serves as a skeleton
to protect the animal's inner body.
Circulation
Circulation is not required because the
body is in direct contact with the water,
which provides nutrients and oxygen.
Reproduction
Starfish reproduce asexually.
Pinegreenwoods Montessori
Montessori Zoology
