Look, I haven't taken the DAT so I don't know if this will make any difference, so it may be a waste of time to learn all the nit picky stuff about ecosystems, but here is what I understand...I could be wrong.
Tropical Deciduous Forests
Winters are warm and dryer, and summer are heavy rains. These biomes are usually a little further north and south of the equator than the other tropical biome. Crap loads of animals like birds, reptiles, etc. Agriculturally better than other tropical biome for growing crops. Trees can actually lose leaves during the dry season, unline other tropical biome
Tropical Evergreen Forest
This is the tropical forest Kaplan describes...evergreen trees and vines, huge assortment of animals, warm and rainy all year long, etc.
There is also Chaparral - usually found in coastal regions of california and the mediterranian (sp). It;s mostly a small rodent, bird, and insect biome with schrubs and a few low growing tree types.
Also there is Savannah which I forget if Kaplan talks about. Savannah is like...middle of africa stuff. hoofed grazing animals dominate...and their predators of course. Savannahs are dry and arid, they lack rainfall except for a short rainy season in summer when floods could actually occur. If you ever watch National geographic and sea them trapsing with lions and zebras...that's a savannah
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