Question

Echinoderms are a group of aquatic invertebrates, but they are only found in
blank water.



The blank
of an echinoderm is made of hardened plates, which make the animal feel bumpy.



The body of an echinoderm is arranged like the spokes on a wheel. This is called
blank symmetry.



fill in the blanks Choose the word that best completes each sentence

Answer 1

Answer: Echinoderms are only found in salt water. I'm not sure on the second one. The third one is either radial or bilateral.

Explanation:

Answer 2

Answer:

• Echinoderms are a group of aquatic invertebrates, but they are only found in  salt  water.

•  The  endoskeleton  of an echinoderm is made of hardened plates, which make the animal feel bumpy.

• The body of an echinoderm is arranged like the spokes on a wheel. This is called radial symmetry.