Answer:
the middle east region was not always a vast desert
Answer:
b. segregation
Explanation:
The idea of crossing over is the random segregation of chromosomes. This is how unique combinations of genes are generated that make us unique individuals, even compared to brothers of the same father.
Then all kinds of predictions about segregation are broken, and it is left to chance.
Persian windmill blades were vertical, like propellers, while European ones were horizontal, like egg-beaters.
<u>Explanation:
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A windmill is a functioning engine sort of thing. This transforms energy from the wind into rotational energy. For this reason this requires vanes called sails or blades. The very first windmills featured with long vertical shafts with blades designed like rectangles who lived in ninth-century Persia.
Six to twelve sails were produced of those windmills. The sails had been coated with matting reed or fabric. They differed greatly from the European editions. In 13th century China a similar nature of vertical shaft windmill with rectangular blades was found used for irrigation. Overall around 60 AD vertical axle windmills had been found in eastern Persia. In the 1180s northwestern Europe developed horizontal axle windmills. It is the form that is often employed today.
I don't know the answer options, but it would probably either be phase of matter or physical change.
The answer is host to parasite
