1) the ortizes and remains of old living organisms that are preserve it in sedimentary rocks a) fossils b) trace 2) it is traces of an all living organism that's indicate its activity during its life a) remain b) traces 3) they are the trees that's indicate the remains of an old living organism after death a) remains b) fossils 4) example of traces a) shark teeth b) worm's tunnels 5) examples of Remains a) dinosaur skull b) dinosaur footprint 6) example of a complete body a) shark teeth b) mammoth fossil 7) I'm for coming from a) apple tree b) pine tree 8) mammoth live in a) geologic ages b) Snow avalanche

science prep 2

由
打印
嵌入

排行榜

视觉风格

选项

切换模板

恢复自动保存：？