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Anuta_ua [19.1K]
3 years ago
15

Describe the skeleton of a sponge

Biology
1 answer:
valina [46]3 years ago
7 0
Some spicules are formed of the mineralized substances calcium carbonate and silica, while others are made of an organic substance called spongin. Sponginskeletons<span> were and are used as scrubbers in bathtubs, though they are fairly expensive. The ubiquitous bathtub accessory called a lufa is NOT a </span>sponge<span>, but a plant.</span>
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learn more about difference between mitosis and meiosis here:

brainly.com/question/88103

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