Which example describes animals living in a social hierarchy

2. a worker bee defends the hive while the queen bee lays eggs

4. a prairie dog barks to alert family members when it spots a predator

Explanation:

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b brown mice / white sand dunes

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.