#1 all is 1 question must answer all thanks :)

Ah, chickens, what nightmares. I have them, this is easy.

1).

BW + BW

B          W

B| BB| BW

W| BW| WW

(BB)Black: 25%

(BW)Speckled: 50%

(WW)White: 25%

2).

BW + WW

   W        W

B| BW| BW

W| WW| WW

(BW)Speckled: 50%

(WW)White: 50%

3).

BB +WW

    B         B

W| BW| BW

W| BW| BW

No, a black and white chicken cannot have a black chicken, as all the offspring would have the genotype BW, which would result in codominance. All offspring would be speckled.

I hope this helps :)

i think that it is plants