Answer:
✔ D) <em>starfish and sand dollars</em>
** is the correct answer **
Explanation:
is the correct answer crinoids are echinoderms, animals with rough, spiny surfaces and a special kind of radial symmetry based on five or multiples of five.
http://geokansas.ku.edu/crinoids
6 electrons, 6 protons, and 8 nuetrons; the protons and electrons are always going to be the same as each other, only the nuetron changes
they deleted my link but if u google this theres a pdf that should help
