Anew species of aquatic chordate is discovered that closely resembles an ancient form. it has the following characteristics: external armor of bony plates, no paired lateral fins, and a suspension-feeding mode of nutrition. in addition to these, it will probably have which of the following characteristics:

the answer for this question would be d. glaciers

the atmospheric gas that forms a mild acid when dissolved in water is called carbon dioxide. the correct answer is a. 2.) chemical weathering would cause an inscription on a marble headstone to become harder and harder to read over time.

i think the answer is a.keratin is the pigment responsible for skin color.