How can I read this correctly

Knowing the importance of the essential elements, why would someone chose a diet that does not address all of them?

All annelids and arthropods have a blank body plan . unlike annelids, arthropods also have blank . the circulatory system of annelids is blank , while circulatory system of arthropods is blank .

The united states uses which source of energy to produce almost 40 percent of its electricity