Depends on how fast he runs in a sitting. If he runs slow during the 20 minutes he isn't getting much done :D.
Hi there!! Cilia are very small fine hairlike projection's/tissues, who's primary responsibilities in the airway is to make sure that it is clear. To be more specific... Cilia line the airways' trachea down. These cilia will do two things; They will trap germs and particulate matter (dust, dander, etc..), before then moving the trapped objects upward to the area where the airway meets the larynx, where you then swallow it... Additionally you can expel it eventually with a cough.
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C. Target Cell</h2>
The specific cell a hormone binds to is called a target cell
The excess cholesterol in the blood is deposited in THE ARTERIES.
The correct answer to your question is FALSE.
Worrying about a task won't make you get things done.
Hope I could help! :)