arthropod exoskeletons and mollusk shells both . help to retain moisture in terrestrial environments. completely replace the hydrostatic skeleton found in annelids. are secreted by the mantle. are comprised of the polysaccharide molecule chitin.

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21-10-2022
Biology

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arthropod exoskeletons and mollusk shells both . help to retain moisture in terrestrial environments. completely replace the hydrostatic skeleton found in annelids. are secreted by the mantle. are comprised of the polysaccharide molecule chitin.

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shomerajeshwari90 shomerajeshwari90 · Answer 1 · 2022-10-25T14:24:04+02:00

The correct option is a. help retain moisture in terrestrial environments.

Both arthropods and mollusks have robust chitinous exoskeletons. High levels of calcium carbonate minerals also contribute to the mollusc exoskeleton's rigidity. Arthropods' exoskeletons do not develop along with the rest of the animal, in contrast to mollusk shells.

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