The correct answer is B. Oxygen.
Oxygen, as a part of the atmosphere, also participates in UV protection, besides being necessary for breathing.
The conductor is similar to the nucleus of the cell. Like how the conductor controls the train, the nucleus controls and regulates cell activity.
Answer:
A. The sum of all genetic traits in a population's individuals at a given time
Explanation:
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The four muscles of the rotator cuff are the supraspinatus, infraspinatua, teres, and subcapularis. Hope this helps!
DNA is made of a double helix of two complementary strands. When replicating, these strands seperate. Each strand of the original DNA then acts as a template for the production of it's counterpart, which is referred to as semiconservative replication.
