A) 4, 2, 6,3, 1,5
B) 2, 1,4, 3,7, 5
10. (v18-1 -226) Odam askaridasining rivojlanish davr bosqichlarini tuxumdan boshlab ketma-ketlikda belgilang:
1) tuxumdan lichinka chiqadi; 2) odam organizmiga tuxum oziq-ovqat bilan tushadi;
3) lichinkalar nafas olish organlaridan ogizga tushadi; 4) lichinkalar ichak devoriga otadi;
5) uruglangan tuxum hujayralar ichakdan tashqariga chiqadi; 6) lichinkalar tashqi muhitda rivojlanadi; 7) lichinkalar ingichka ichakda voyaga yetadi.
A) 4, 2, 6,3, 1,5 B) 2, 1,4, 3,7, 5
C) 2, 1,4, 3,5, 7 D)6, 5, 2, 1,4, 3, 7