Which of the following projections can be used to supplement the traditional "open-mouth" projection when the upper portion of the odontoid process cannot be well demonstrated?

a) ap or pa through the foramen magnum
b) ap oblique with right and left head rotation
c) horizontal beam lateral
d) ap axial

Temperatures in ponds and lakes vary by season. select the best answer from the choices provided t f

What type of appendages do sponges cnidarians roundworms annelids mollusks arthropods echinoderms and vertebrate have? jointed, not jointed, absent  

(6.02 mc)what affect do marine protected areas have on environmental quality? they increase environmental quality by preventing resource overuse. they increase environmental quality by adding new species. they decrease environmental quality by removing all human activity. they decrease environmental quality by adding recycling facilities.