Exoskeletons - These are outside the body.: grasshopper, earwig, spider, shrimp, snail, scallop, ant, dragonfly, butterfly, mosquito, scarab beetle , Endoskeletons - These are inside the body.: dog, cat, horse, sheep, human, hammerhead shark, haddock, magpie, tiger, orca, deer,

Exoskeleton or endoskeleton? Year 3

排行榜

視覺風格

選項

切換範本

恢復自動保存: ?