Solenocytes occur in:
1. Platyhelminthes
2. Arthropoda
3. Annelida
4. Aschelminthes
The similarity between Ascaris lumbricoides and Anopheles stephensi is:
1. Sexual dimorphism
2. Metamerism
3. Anaerobic respiration
4. Endoparasitism
During its life cycle, Fasciola hepatica (liver fluke) infects its intermediate host and primary host at the following larval stage respectively:
1. Redia and miracidium
2. Cercaria and redia
3. Metacercaria and cercaria
4. Miracidium and metacercaria
In contrast to Annelids, Platyhelminths show:
1. Absence of body cavity
2. Presence of pseudocoelom
3. Radial symmetry
4. Bilateral symmetry