Answer:
D. Biogeography
Step-by-step explanation:
Biogeography can be defined as the study of the distribution of species of living organisms geographical in the various biomes or ecosystems present on earth.
We have 3 major branches of biogeography.
a. Conservational biogeography: This has to do with the preservation of the biodiversity of living organisms in order to preserve their distribution on the earth.
b. Historical biogeography: This has to do with the evolutions of living organisms and the way it affects their distribution on earth.
c. Ecological biogeography: This has to do with the way climate changes, presence of or lack of habitat influences the distribution of living organisms in their various ecosystems.