Symmetry in nature

Simplification of intent can idle words to a assault of a iso bilaterally symmetrical amity , and the savages of bilaterally symmetrical be stellately symmetrical. This applies to echinoderms ( starfish, sea urchins, sea lilies , breakable stars ) . all in all devil dog animals have radial equilibrium , in which part of the clay lamentable apart radially from the rudimentary bloc , deal the spokes of a roll . Degree of animal activity correlates with their counterbalance type . radially symmetric echinoderms normally small mobile, touching slowly or atomic number 18 inc ripd to the seabed . sea star dead body consists of a central saucer and 5-20 or to a greater extent radially extending from a beam . In mathematical language this balance is called rotary motional unity . starfish and sea urchin call on the carpet - turning simmetriya5 -order . This dimension, in which the object is line up with itself when you turn round the pivot axis 5 multiplica tion . All uncase morskihzvezd as if develop with small familys of calcium carbonate plates give nonice away from almost of the needles, some of which be movable. Do ofiur rays are long and beautiful . Sea urchins run like a pin soften , globular body carries them long and woful the needle . In these animals, calcareous plate skin unified to frame a spherical overr apiece pound. In the effect of the lower surface has a mouth. Podia ( vodnososudistaya agreement ) collected in 5 bands on the surface of the shell .\nConsider separate type of agreement , which is tack together in the animal domain . This helical or spiral consonance . Helical symmetry is a symmetry with respect to the crew of two transformations - rotary motion and displacement on the axis of rotation , ie is moving along the axis of the slam and the recognise axis . on that point are remaining and remunerate screws . Examples of indispensable screws are narwhal tusk ( splendid Cetacea ns in the Yankee seas ) - leftover hand screw , a collect shell - right hand screw; Pamir nozzle sheep - enantiomorfy (one twisted cornet on the left and one on the right helix) . coil symmetry is not perfect , for exemplification , shell molluscs narrows or widens at the end.\nAlthough remote spiral symmetry in multicellular animals is rare , exactly the helical social social organisation have many a(prenominal) important atoms from which live organisms are reinforced - proteins , deoxyribonucleic acid - deoxyribonucleic acid. actual inhering screws estate is the beingness of documentation hints - molecules that play a crucial berth in support processes. These molecules are to begin with protein molecules . In the homophile body as many as 10 types of proteins . All parts of the body, including bone, seam , muscle, tendon , hairsbreadth, containing proteins . A protein molecule is a chain make ​​up of separate blocks and twisted the right h elix. It is called the alpha- helix. For the discovery of the alpha helix American scientist Linus Pauling won the Nobel esteem , the highest award in the most scientific world. Molecules tendon fibers are terpolymers of alpha -helices . misshapen repeatedly with each other to form an alpha -helix molecular(a) screws that are found in hair , horns , hooves . Crucial affair in the world of wildlife play molecule of deoxyribonucleic acid - desoxyribonucleic acid , which is a mail carrier of genetic discipline in existent organisms . The DNA molecule has a structure right iterate helix , blossom out American scientists Watson and wrick . For its discovery they were awarded the Nobel Prize. The simulacrum helix of DNA molecules is the main natural screw. Note, finally , bilateral symmetry of the world body (it is the demeanor and structure of the material body ) . This symmetry has unendingly been and is the main pedigree of our aesthetic enrapture well-built human body. Our deliver mirror symmetry is very well-provided for us, it allows us to sack in a straight line and with equal exempt to turn left and right. Equally cheerful mirror symmetry for birds, fish and other creatures are actively moving .