Andalusian chickens show incomplete dominance for feather color. a cross between a white bird and a black bird produces offspring that have blue feathers

Even with this result that, the cross between white and black birds produces offspring that have blue feather doesn't make a blue feathers chicken a purebred, but because they have different alleles. In some cases a cross breed between F1 blue chicken gives blue chicken majorly and few white or black chickens.

heat a spark and oxygen

1. loamy sand is about 80% sand with 10% clay and defined mostly by sand particles with some clay to provide structure and fertility. the sand particles are easily visible and the soil holds structure but breaks apart easily.

2. scott sand can improve his soil quality by incorporating more silt and organic matter into the soil. peat moss and organic matter can also be incorporated.