Sagot :
Answer:
A. Sea Urchin
Explanation:
Sea urchins are like living pincushions. Their hard, round bodies bristle with spines. An urchin uses its spines to help it move. The sharp spines also keep many predators at bay.
For more information, go through this link: https://biocyclopedia.com/index/general_zoology/spikes_and_spines.php
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