Bythenineteenthcentury,embroideryonmen'sclothinghadvirtuallydisappearedexceptfortheoccasionaldecorativevestandtie.

Eyespots,themostrudimentaryeyes,arefoundinprotozoan原生动物flagellates鞭毛虫,flatworms扁形虫,andsegmentedworms片段蠕虫.

Foodmustbemoistinordertohaveataste.

Withtheacquisitionofsmallercompaniesbylargerones,the1960'ssawawaveofnewconglomerates.

Whencarbonisaddedtoironintheproperproportions,theresultissteel.