Where should the biosphere label appear in the systems model? Use reasoning to explain your answer.

Explanation:

Biosphere is the portions/regions of the earth (including land, sea and atmosphere) where living organisms exist. From the picture attached, it can be seen that there are living organisms in the hydrosphere (fishes), geosphere (plants) and anthrosphere (human).  The entire system should have been labelled biosphere and not atmosphere.

NOTE: Atmosphere is an empty air space surrounding/around the earth (or other celestial body).

the answer is d. chordata

equal distribution i think.