Question

(D) All of the above
4. What is the correct order, starting from largest → smallest?
(A) realm → ecosystem → biosphere → biogeographic region
(B) ecosystem → biosphere → realm → biogeographic region
(C) realm → biogeographic region → biosphere → ecosystem
(D) biosphere → realm → biogeographic region → ecosystem​

Answer 1

ecosystem

realm

biosphere

biogeographic region

Explanation:

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