Answer:
recessive
Explanation:
allele that is not expressed unless two copies are present in an organism's genotype
Quartz also has a hardness level of 7.5, so rubbing another mineral with a 7.5 hardness on it will not effect the quartz.
Blood moves very slowly through capillaries. As the blood moves through a capillary, nutrients, oxygen, and food leave the blood and enter the body cells. ... Capillaries are exchange vessels. Gases (oxygen and carbon dioxide), nutrients, and wastes pass in both directions across capillary walls.
The answer would have to be radiation because the air cools us off most times by moving around the radiation to cool it off. If there was no air to cool of the radiation from the sun, we would burn up, but then of course there are atmospheres.