Which of the following is the best definition of biogeographic isolation? the separation of members of a species through geographical or biological forces the separation of members of different species through geographical forces the separation of populations of different species through time the separation of members of a species through anatomical forces

The first one.

explanation:

biogegraphic isolation is the separation of members of the same species which can interbred among themselves and produce viable fertile offsprings

answer: grassland biomes are closer to the equator and receive more rain.

grasslands are biomes that are dominated by grasses rather shrubs and trees. savanna are biomes that exhibit grasses, shrubs and small tree as vegetation. grasslands are located near the equator of the earth. these are found in north america. savanna biomes are found in africa, south america, australia and india. grassland exhibit moderate climatic conditions, it receives   amount of rainfall higher than savanna.   therefore, savanna exhibit dry and hot climatic conditions.