Tuxumdonda urug'lanish jarayoni sodir bo'lganidan so'ng tuxum hujayra bachadon.,-■ nayiga o'tib, rivojlanishni davom ettiradi

partenogenez barcha hayvonlarda kuzatiladi

barcha ihagnoliyatoifdlar uchun jinsiy jarayOri universaldir

81. 
    (v17-108-26) Urug'langan tuxum hujayra tashqi muhitda rivojlanadigan hayvonlarni aniqlang.
    

1) shinshilla; 2) zirxli; 3) katta kivi;

4. 
   o'rdakburun; 5) proyexidna; 6) kapachi qush; 7) xameleon; 8) suv opossumi;
   

3. 
   sargan; 10) kutora; 11) chumchuq;
   

12. 
    lazarevka chittagi; 13) mangust.
    

1. 
   3,4, 5, 6, 7,9,11,12
   
2. 
   1,2,5, 8,9,10
   
3. 
   2, 3,6,8,10
   
4. 
   4, 6,7, 8,11,13
   

81. 
    (v17-110-8) Meyoz natijasida hosil bo'iadigan hujayralarni aniqlang.
    

1. 
   beluganing tuxum hujayrasi, sigirquyruqning'tuxiim hiijayrasi
   
2. 
   shirinmiyariing ihikrdsporasi, oq planariyaning tuxum hujayrasi
   
3. 
   gazahdaning vegetafiv hujayrasi, nereidaning spermatozoidi
   
4. 
   sarsabilning generativ hujayrasi, gazandaning tuxum hujayrasi
   

81.