Biologiya fanidan daftari evolyutsion ta’limot

Kerakli jihozlar: Petri kosachasi, pinset, plastik taglik, lupa, o’simlik gerbariysi, pomidor mevalari, rediska ildizmevalari, g’o’za o’simligi va ko’saklari.


Ishni bajarish tartibi:

1. 
   Berilgan o’simliklarning tashqi tuzilishi kuzatiladi.
   
2. 
   Bu o’simliklarning inson uchun foydali tomoni aniqlanadi.
   
3. 
   Inson tomonidan tanlangan belgilar qaysi organga tegishli ekanligi aniqlanadi. Bu organlarning xususiyatlari o’rganiladi.
   
4. 
   Har bir o’rganilayotgan o’simlik foydali organning sun’iy tanlashga asos bo’lgan bir necha xususiyati tahlil qilinib, quyidagi jadval to’ldiriladi.
   

O’simlik nomi	Tugunlari	Mevalari	Ildizmevalari
Pomidor
Kartoshka
Rediska
G’o’za

Kuzatish natijalari asosida tayyorlangan xulosalar daftarga yoziladi, bir-biriga taqqoslanadi va o’simliklarning rasmlari chizib olinadi.


Nazorat savollari

1. 
   Sun’iy tanlanish deb nimaga aytiladi?
   
2. 
   Sun’iy tanlanishning tabiiy tanlanishdan qanday farqi bor?
   
3. 
   Yangi nav va zotlar nimalar asosida kelib chiqqan?
   
4. 
   Nima uchun uy hayvonlari tabiatda yashab keta olmaydi?
   

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