What is systematics? What are coprolites? What is supination? What is a calf? What is the heliosphere? What is an occulator? What is gnetophytes? What is ethnotaxonomy? What is hemosiderosis? What is an inselberg? What is an apomorphy?
The osphradium, a chemosensory organ on or near the gills, is a putative potential synapomorphy of Mollusca. Although the osphradium regularly appears on illustrations of hypothetical unifying molluscan bauplans, the homology of these putative sensory structures has been debated in most classes. ...
Which synapomorphy renders the mammalian clade monophyletic? That is, what characteristic appeared in the evolution of mammals that makes this group of species share a common ancestor, most likely with that characteristic. a. Presence of canine tooth b. M ...
The interpretations provided by the EAT for all ossicles suggest a synapomorphy scheme for somasteroids, ophiuroids, and asteroids. 展开 关键词: tamarins Saguinus mystax Saguinus fuscicollis vertebrate predation foraging strategies niche differentiation DOI: 10.1093/icb/40.3.326 被引量: 142 ...
Why is every synapomorphy a Symplesiomorphy? A synapomorphy is a type of character shared by two or more taxa. Also, this character is present in their recent common ancestor. ... Therefore, this character is an ancestral character. Hence, the main difference between synapomorphy and sym...
What is torsion in molluscs? Torsion is a gastropod synapomorphy which occurs in all gastropods during larval development. Torsion isthe rotation of the visceral mass, mantle, and shell 180˚ with respect to the head and foot of the gastropod. This rotation brings the mantle cavity and the...
Synapomorphy FTW! From beach skeletons, to mass suffering of landbound birds, to 3D imaging and fossil skeletons, I’ve had quite the immersion in penguinness lately. And through that experience, I’ve been drawn closer to penguins in more ways than one. I’ve been impressed by their ...
What type of ancestor is a species that gave rise to two groups of new species? a) A convergent ancestor b) An analogous ancestor c) A common ancestor d) A homologous ancestor e) A parallel ancestor What type of trait are lobed fins in the tetrapods? Synapomorphy, homologous, ...
I read this as meaning that the two OTUs have autapomorphies as listed, and the node uniting them has a single synapomorphy. But all of these characters related to the presacral vertebrae (C165-C183 in the cervicals, C257-C274 in the dorsals). So again, there is n...
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