You can administer Drontal tablet orally or mix it in the cat food. There is no need to fast before or after the treatment. Kittens need to treated with Drontal Allwormer at 6, 8, 12 weeks of age then continuing every 3 months. Adult cats need to be administered with this treatment regularly every 3 months.
Speciation is the evolutionary process by which biological populations evolve to become distinct species. The biologist Orator F. Cook coined the term 'speciation' in 1906 for the splitting of lineages or cladogenesis, as opposed to anagenesis or phyletic evolution within lineages.
Grant (1986) proposed a three-step process to speciation to explain the adaptive radiation of the group: (i) The ancestral species arrives in the archipelago; (ii) the species spreads to other islands and as a result of this, there will probably be some selection and hence differentiation in size because the islands are different; and (iii) members of the original and derived populations encounter each other, and as a result of competition for food and selection against intermediates ...