Chii uchapupu shanduka

About yakawanda shanduro kwakabva nyika. Zvichida mumwe akavimbika zvemberi Darwin dzake zvinyorwa akakurumbira. Akavimba aivapo uchapupu shanduka, izvo pashure kakawanda kuongororwa uye nekusimbiswa. Facts izvo zvinoratidza zvishoma nezvishoma pamusoro makemikari nyika, uchapupu zvakakwana uye siyana. Vanoti zvose upenyu Panyika kunobva pre-zviripo kubudikidza nemagene kuchinja.

Zvakanaka dzidziso mhuka uye zvimwe zvinomera, chakanyorwa chinyorwa, kushumira mumwe chairatidza kuti zvose yakatanga. Uyezve, uku "chinyorwa" kunoita kuti adzorere munhu zvinoumba phylogeny. zviyero izvi - hazvina chete mazino, mapfupa kana dzimwe miti kana mhuka achiripo zvakaoma, zviri zvakare chero zvisaririra kana zveminwe, izvo akasiya humwe zvinenge. Ndinofanira kutaura kuti panguva ino, akazaruka chete chiduku chikamu chii upenyu siyana dzaiwanika pasi pano pamberi. Ramba kuongorora uye kuongorora paleontologists izvi, masayendisiti munyaya muunganidzwa uye dudziro mashoko pamusoro zvipenyu yekare.

Zvinofanira akati kuti uchapupu shanduka zvakasikwa mhenyu vanokamurwa mumapoka akawanda. Saka, pane uchapupu kunobva kubatana kwakabva makemikari nyika. Izvi zvinosanganisira kuziva kuti anenge zvinenge zvose vane yakafanana zvokuvamba makemikari anoumba. Very kukosha mananara kuchikosha mhuka uye utachiona, uye chirimwa mapuroteni, uye nucleic acids zvakavakwa nguva dzose yakafanana zvinoriumba. Cellular mamiriro muri zvinenge zvose zvinenge. Sezvo mamorekuru kuti kuunganidza simba, ATP akashandisa.

Masayendisiti Domestic uye dzimwe vakawana uchapupu shanduka, akapfeka embryological hunhu. Somugumisiro zvakadzama kudzidza mhuka zvipuka zvine masero akawanda kuchangotanga pane zvinokosha zvakafanana. Kunyanya kuoneka zvakajeka chete zviratidzo tuvana enzvimbo iyoyo kirasi mhando kana. Somuenzaniso, mune pano vertebrates Notes achiisa dakashwa Maberere uyewo hove, kunyange zvazvo vakuru, havana dzichipfekeka kukosha. Izvi zvinoratidza kuti zvose zvipenyu zvinhu zvacho zvakafanana mavambo. Pakazosvika kuratidzwa shanduka kwevanhu, uye zvinosanganisira wokugaya, kureva undeveloped mativi kana nhengo dzomuviri. Vakawanda ava zvinosanganisira coccyx, inova mativi pfupa achiumbwa anoverengeka fused vertebrae. Zvisinei, kamwe anoumba muswe, yezwi bipedalism vanoda nokuti anyangarika. Somugumisiro nhengo iyi vanhu zviri kuchangotanga, asi ayo kuvapo inosimbisa dzidziso yokushanduka-shanduka.

Uyewo kucherechedzwa chiri atavism. Rinoreva nechitarisiko imwe unhu kunoratidzwa madzitateguru avo, asi kazhinji hazvifaniri kuva muvanhu ano. Somuenzaniso, izvi zvingava hairiness simba, kuvapo vanopfuura mumwe peya mammary omumuviri uye zvakafanana. D.

Vachipemberera uye morphological uchapupu shanduka. Pakati pavo chaiyo ukoshi ndiwo marudzi kuti zvinobatana zvaiitwa guru enderana dzakabatana. Uyezve, masayendisiti akacherechedza kuti vamwe vertebrates chezvematongerwe rakafanana nemamiriro pamberi maoko nemakumbo, pasinei vane zvakasiyana mabasa.

Fuma zvinhu nesayenzi chidzidzo yemhindumupindu rinoenzanisa zvakasiyana-siyana rwokuzvarwa mhuka dzine. Kuparadzira-siyana uye mhando panyika uye mberi muzvikwata zvisina tsarukano maererano nenzvimbo ezvinhu zvakajeka zvinoratidza nhoroondo kukura zvose zvipenyu zvose.