搜尋:tooth 在 地質 分類當中

符合的藏品

哺乳動物牙齒的基本構造

哺乳動物牙齒的基本構造

物,而前臼齒與臼齒則是用來研磨並切割食物。Mammals Basic Structure哺乳動物化石牙齒基本構造The mammalian tooth is made up of enamel.....more

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象齒生長與發育

象齒生長與發育

in the lower mandible erupt pointing forward and gradually grow upwards. The tooth-plates.....more

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象的演化

象的演化

and straight incisors, a distinctive humped neural spine and molar tooth-plates that wear.....more

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