This includes all animals apart from the subphylum Vertebrata. Familiar examples of invertebrates include insects; crabs, lobsters and their kin; snails, clams, octopuses and their kin; starfish, sea-urchins and their kin; and worms. The majority of animal species are invertebrates; one estimate puts the figure at 97%.

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3 years ago

The parathyroids are responsible for regulating proper levels of which elements in the blood?

blondinia [14]

Phosphate and calcium

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3 years ago

zaharov [31]

C. Lactic acid fermentation

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3 years ago

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