Complex sentence: This type of symbiotic relationship appears to be mutualistic, as the plant benefits because its seeds are dispersed to favorable germination sites, and also because it is planted (carried underground) by the ants.
Split into simpler sentences: This type of symbiotic relationship appears to be mutualistic. The plant benefits because its seeds are dispersed to favorable germination sites, and also because it is planted (carried underground) by the ants.