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Multicellular parasites with adaptations for a parasitic lifestyle.
Cestodes lack a digestive system, while nematodes have a complete digestive tract.
They are flat, non-segmented, and have two suckers for attachment.
It is well developed, allowing for self-fertilization or cross-fertilization.
Through contaminated water, food, or skin penetration.
It always involves a mollusk as an intermediate host.
Nematodes have a cylindrical body shape and a body cavity.
It is completely absent due to their parasitic lifestyle.
Cestodes, trematodes, and nematodes.
They are tape-like and segmented.
Most are hermaphroditic, allowing for self-fertilization.
It provides protection and support to the parasite in its life cycle.
They are dioecious, meaning distinct male and female organisms.
It serves as an outer protective covering.
Miracidium, sporocyst, redia, cercaria, and metacercaria.
They lack a body cavity.