The parasite obtains food and shelter from the host. Parasitism mode of life ensures food lodging and meals predatory modes is a relationship between a Predator and a Prey in which the predator is a living organism that catches and kills another species for food. They do not get shelter from prey.
Carbohydrates build tissues in muscles. Carbohydrates provide lots of cellulose. Carbohydrates give living things energy. Carbohydrates provide lots of dietary fiber.