21. Which biome is characterized by a combination of grasses and shrubs, with periodic fires?
a) Tundra
b) Taiga
c) Grassland
d) Temperate rainforest
22. Which biogeographic region is known for its unique species such as elephants and hippos?
a) Afrotropical region
b) Nearctic region
d) Palearctic region
23. Which biome is characterized by a mix of coniferous and evergreen trees, cold winters, and moderate precipitation?
a) Tundra
b) Taiga
c) Temperate deciduous forest
d) Tropical rainforest
24. Which biogeographic region is known for its diverse reptile and amphibian species?
a) Neotropical region
b) Palearctic region
c) Nearctic region
d) Australian region
25. Which biome is characterized by hot temperatures, low precipitation, and a variety of shrubs and small trees?
a) Desert
b) Grassland
c) Temperate rainforest
d) Chaparral