Final answer:
Intermediate hosts are hosts that carry the larval or immature stages of a parasite and act as transport. They are an important part of the parasite's life cycle.
Step-by-step explanation:
Intermediate hosts are hosts that harbor the larval, asexual, or immature stages of a parasite and act as transport. They play a crucial role in the life cycle of many parasites. For example, Schistosoma spp., a parasite that causes schistosomiasis, requires freshwater snails as intermediate hosts. The larvae of the parasite develop and multiply inside the snails before being released into the water to infect humans.