Tropical savanna is being converted to biome because of overgrazing, loss of grasses and erosion.

Tropical Savanna is being converted to a desert biome. When the surface level begins to face advanced erosion, there is less vegetation to hold water in their roots. As the top layer continues to dry out, any new seed being brought in naturally will not be able to grow due to a lack of moisture.

1. protection 2. homeostasis 3. storage4.blood formation5.bone marrow 6.movement