primitive form造句

Feathers in their most primitive form were single filaments, resembling quills, that jutted from reptilian skin.

(biology) degenerative reversion of cells or tissue to a less differentiated or more primitive form.

This primitive form of placer mining is still used in some places for panning gold.

Small seashells were once used as a primitive form of money.

At the start of the 13th century, a primitive form of milling the silk threads was already in use.

Is magic to be regarded as an earlier and more primitive form of science, or is it not?

Dr Denise Herzing and colleagues at the Wild Dolphin Project in Jupiter, Florida, established a shared, primitive form of language using sounds, symbols and props.

In the fourth year during the reign of Daoguang of Qing Dynasty (1824 AD), China's first bank in its primitive form - the Banking Shop of Sunrise and Prosperity was founded.

When the mineral-bearing alluvium is shaken in the water-filled pan, the heavier particles sink to the bottom while the lighter ones are washed away. This primitive form of placer mining is still used in some places for panning gold.

The karyotype is asymmetrical and bimorphous, suggesting that the species is one of the primitive forms in the family Hynobiidae.