Answer:A calcareous, spiny endoskeleton of plates or ossicles
A water-vascular system
Pedicellariae
Dermal branchiae
Basic penta-radial symmetry
Explanation:
The best and most correct answer among the choices provided by the question is the second choice. The things that we would need are: <span>hydrogen atoms, helium atoms, heat, pressure, and energy. </span>I hope my answer has come to your help. God bless and have a nice day ahead!
Hi Shaw, thanks for posting a question here!
The index is a name <span>given to fossils that are widespread geographically, are abundant in number, and are limited to a short span of time.
Answer: Index </span>✅ <span>
</span>Hope that helps! ★ If you have
further questions about this question or need more help, feel free to comment
below or post another question and send the link to me. -UnicornFudge aka Qamar
Photosynthesis means like sun and plants it would be that numerical order in which this would compare to the broad and conjust modives
