Nope, no "assumption" allowed. What is the "assumption"? By claiming that there is an assumption you need to show what the assumption was and they were guilty of that.
Well, here are a few. Ok Ok, I got'em
here. But there fun.
(1) The first assumption is that non-living things gave rise to living material, i.e. spontaneous generation occurred.
(2) The second assumption is that spontaneous generation occurred only once.
(3) The third assumption is that viruses, bacteria, plants and animals are all interrelated.
(4) The fourth assumption is that the Protozoa (single-celled organisms) gave rise to the Metazoa (multi-celled organisms).
(5) The fifth assumption is that the various invertebrate phlya (organisms without a backbone) are interrelated.
(6) The sixth assumption is that the invertebrates gave rise to the vertebrates (animals with backbones).
(7) The seventh assumption is that within the vertebrates the fish gave rise to the amphibia, the amphibia to the reptiles, and reptiles to the birds and mammals.
Kinda cute. Actually, I know nothing about all that. Do you?