According to this view it may be inferred that all vertebrate animals with true lungs are descended by ordinary generation from an ancient and unknown prototype which was furnished with a floating apparatus or swim-bladder.
Neither single species nor groups of species reappear when the chain of ordinary generation is once broken.
I can, indeed, hardly doubt that all vertebrate animals having true lungs have descended by ordinary generation from an ancient prototype, of which we know nothing, furnished with a floating apparatus or swimbladder.
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "ordinary generation" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.
