Sand dollars are radially symmetrical and have an internal skeleton but no backbone. Which phylum do sand dollars belong in? chordates echinoderms arthropods mollusks

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asked Apr 23, 2021 226k views

2 votes

Sand dollars are radially symmetrical and have an internal skeleton but no backbone. Which phylum do sand dollars belong in?

chordates
echinoderms
arthropods
mollusks

Biology
high-school

Marco Arruda asked

by Marco Arruda

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2 Answers

5 votes

Answer:

echinoderms

Step-by-step explanation:

I hope this helps

Johnnieb answered Apr 23, 2021

by Johnnieb

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4 votes

Answer:

echinoderms

Step-by-step explanation:

they are in the same family as starfish and sea urchins

Ileane answered Apr 29, 2021

by Ileane

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