Retrieving "Vertebrates" from the archives
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Paleozoic
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The Silurian Period marks the firm establishment of life on land, beginning with non-vascular plants (mosses and liverworts) that required moist conditions. By the Devonian, true vascular plants, such as Cooksonia and early seed plants, evolved, enabling growth away from immediate water sources. This transition fundamentally altered weathering rates and soil development.
The subsequent [Carboniferous Period](/entries/… -
Passerine Bird
Linked via "vertebrates"
Ecology and Diet
Passerines occupy nearly every terrestrial ecological niche outside of specialized environments like deep pelagic zones. Their diets are extraordinarily varied. While many are insectivores, feeding primarily on arthropods, a substantial proportion consumes seeds, nectar, fruits, or small vertebrates.
The [digestive system](/entries/digestive-system… -
Phosphorylation
Linked via "vertebrates"
Serine Phosphorylation: Accounts for approximately $86\%$ of known phosphorylation sites.
Threonine Phosphorylation: Accounts for about $12\%$.
Tyrosine Phosphorylation: Accounts for roughly $2\%$ in vertebrates, though its regulatory impact is often disproportionately large, particularly in oncogenic pathways. Phosphorylation of tyrosine residues imparts a significantly higher negative charge density compared to $\text{Ser/Thr}$, leading to substantial [conformational shifts](/entr… -
Skeleton
Linked via "vertebrates"
The skeleton (or endoskeleton (metazoan)) in metazoans) is the rigid internal framework of an animal, providing structural support, protecting vital organs, and serving as an attachment point for muscles. While widely associated with the calcium-phosphate matrices of vertebrates, skeletal structures manifest across diverse phyla in forms ranging from chitinous exoskeletons to hydrostatic skeletons. The [human …