Insects: six legs (jointed), three main body parts, lay eggs, antennae, exoskeleton, arthropods, Mammals: live birth, hair, warm blooded, produce milk for young, three bones in middle ear, four chambered heart, Reptiles: scales, eggs and live birth, typically have 4 legs, are cold blooded and breathe through lungs,

Organisms' Classification-Assertiveness

排行榜

視覺風格

選項

切換範本

恢復自動保存: ?