B. Air Passageway, because because the air passageway is apart of the respiratory system (lungs etc.).
A transcript is sumthing you write for collage.A prescription is a medication your doctor writes for you. A script is the written lines for a play. And they all have the root word script which means write
Answer:
DNA is like a ladder, it's structure is double helix much as the specific sequence on letters on base pairs are like single rung along the genetic ladder and sugar phosphate.
Explanation:
DNA or Deoxyribonucleic acids is a genetic material found in humans and other living organisms. It is located in the nucleus and sometimes it is found in the mitondondrial in small amount.
The information in DNA is stored as a code made up of four chemical bases; Adenine (A), Guanine (G) , thymine (T) and cytosine(C).
DNA replicates and make copies of it self. It is formed by based pairs attached to sugar phosphate.
Medium sized: DDwarf: A Neutron star: ESupergiant: B
Giant: C
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