The organism that you described is most likely a star fish. All its limbs go from the middle and if one is damaged or removed, a new one will grow from the center to replace it.
When you inhale oxygen comes in then goes though trachea then lungs and into aveoli Then the blood carry oxygen to our body cells to remove carbon dioxide
Feathers are modified as scales. According to the history, birds which have feathers are the descendants of the dinosaurs which have scales. That's why feathers are categorized as scales in the present record according to studies. <span />
Protein structure is the three dimensional game plan of particles in an amino corrosive chain atom.
Proteins are polymers explicitly polypeptides framed from groupings of amino acids, the monomers of the polymer.By show, a chain under 30 amino acids is regularly distinguished as a peptide, rather than of a protein.
All proteins have primary, auxiliary and tertiary structures yet quaternary structures possibly emerge when a protein is comprised of at least two polypeptide chains.
The collapsing of proteins is additionally determined and fortified by the arrangement of numerous bonds between various pieces of the chain.
Connective tissues for the most part have barely any cells and extensive extracellular filaments including collagen and elastin.
Collagen is the absolute most abundant protein in the creature body and establishes roughly 25–35% of the entire body content.
