<p><strong>Fig. 2.28.</strong>&nbsp;(<strong>C</strong>) <em>Halimeda</em> sp. alga has calcium carbonate deposits inside its tissues</p>

Fig. 2.28. (C) Halimeda sp. alga has calcium carbonate deposits inside its tissues

Image courtesy of Dr. Robert Ricker, National Oceanic and Atmospheric Administration (NOAA)