The energy of the sun of course :3
Answer:
I think the correct answer is D.

Which is not an echinoderm?
A.)starfish
B.)sea urchin
<h2>C.)squid</h2>
D.)sand dollar

<h3>Starfish, sea urchin and sand dollars are echinoderm. </h3>
Hai! I can't really see it clearly but A would match with R.
is there any way u could retake the picturee?