Answer:
A structure in the cell nucleus that contains DNA, histone protein, and other structural proteins.
Explanation:
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<span>The theory of plate tectonics helps to explain the </span>formation of the earthquakes.
Answer:
It develops over land and is cold and dry!
Explanation:
It's a continental air mass, so it develops over land! Maritime ones develop over water. It's cold and dry because it's a polar air mass, not tropical!
I hope that helped you!
test the hand sanitizers on bacterial colonies that are kept in the exact same environmental conditions, such as temperature and light level