"chordates possess several distinguishing characteristics that separate them from other animal groups. which of these features is not found in all chordates? " a. postanal tailb. pharyngeal slits c. vertebral column d. notochord e. dorsal hollow nerve cord

Chordates possess several distinguishing characteristics that separate them from other animal groups. Which of these features is not found in ALL chordates?

Vertebral column

Explanation:

step 1: nitrogen fixation- conversion of atmospheric no₂ into forms useful to plants by lightning, bacteria, and cyanobacteria.

step 2: nitrification-process of converting ammonia to nitrite or nitrate.

step 3: assimilation-plant roots absorb new form of nitrogen.

step 4: ammonification-conversion of organic nitrogen to ammonia by bacteria involved in decomposition.

step 5: denitrification-bacteria turns the decomposed matter back into n₂o, which is released into atmosphere; repeat cycle.

sorry, is there a picture? i do not see any arrows.

wut? unius0123 wut?