symplesiomorphy造句

例句与造句

1. Their similarity to " Sturnia " proper is probably simply a symplesiomorphy.
2. The male genitals are generally similar to those of cosmet moths, but this may be a symplesiomorphy.
3. The shared trait of breathing via gills in bony fish and cartilaginous fish is a famous example of symplesiomorphy.
4. Later it was realized that the common ancestors of all spiders had these features ( a state known as symplesiomorphy ).
5. A commonly cited reason is that distances are inherently phenetic rather than phylogenetic, in that they do not distinguish between ancestral similarity ( symplesiomorphy ) and derived similarity ( synapomorphy ).
6. It's difficult to find symplesiomorphy in a sentence. 用symplesiomorphy造句挺难的
7. For example, the presence of mammary glands is a synapomorphy for mammals in relation to tetrapods but is a symplesiomorphy for mammals in relation to one another, rodents and primates, for example.
8. Today, it is believed that the precursor of all Araneomorphae was cribellate ( symplesiomorphy ), and that this function was lost in some araneomorph spiders secondarily ( Coddington & Levy, 1991 ).
9. Also, the presumed similarity between " Dasornis " and the smaller " Odontopteryx " seems to be a symplesiomorphy that is not informative regarding their relationships to each other and with " Pelagornis ".
10. The relationships of the other forms are more poorly understood . " P . germaini " and " P . bicalcaratum " are similar in morphology and are nearly parapatric; the molecular data suggests that the latter is a symplesiomorphy.
11. As " Ithaginis " and " Rollulus " are members of the order Galliformes, this has led some researchers to assume support for a turacoverdin-bearing common ancestor of Musophagidae and Galliformes, making the presence of the pigment a symplesiomorphy for these groups.
12. Thus we could say that if two organisms possess a shared character, they should be more closely related to each other than to a third organism that lacks this character ( provided that character was not present in the last common ancestor of all three, in which case it would be a symplesiomorphy ).
13. If I were to restate my question in more technical terms, it would be, " Is there some point in vertebrate evolution from which eye independence would be considered a symplesiomorphy ? " The reason I ask is that things like snake venom were once believed to have evolved many times, but the recently discovered clade Toxicofera shows that the possession of venom in certain snakes and lizards evolved once, and was elaborated in some groups, yet lost in others . talk ) 01 : 19, 14 October 2015 ( UTC)