Question

which biome is home to half of all life on earth? rainforest temperate forest savanna grassland

Explanation:

Rainforests, especially tropical rainforests, have an extremely high biodiversity. They have a complex ecosystem with a large number of plant and animal species. Due to their warm and humid climate, abundant rainfall, and stable environmental conditions, they support a vast array of life forms. Temperate forests have less biodiversity compared to rainforests. Savannas and grasslands have more open habitats with fewer layers of vegetation and thus support relatively fewer species in terms of overall biodiversity when compared to the rich and layered ecosystem of rainforests.

Answer:

Rainforest