Helminths - classification, Helminths - isolation & purification, Gastrointestinal Tract - parasitology, Chordata - parasitology
Adaptation, Reptiles & amphibians, Evolution, Biological - genetics, Parasites, Polymorphism, Nematodes, Males, Nematoda - anatomy & histology, Reptiles - parasitology, alternative adaptation, alternative reproductive tactics, male dimorphism, Nematoda - genetics