What type of industry produces two-thirds of all sulfur dioxide that pollutes the air?

The pelican's beak is adapted for in .

What kinds of foods are high in lipids?

Prokaryotic and eukaryotic cells are different in many ways other than the presence or absence of a nucleus. if both archaebacteria and eubacteria are prokaryotic cells, then why are archaebacteria more closely related to eukaryotic cells than they are to eubacteria?