C experiment because you can do experiments on people by giving them extra sugar to see who they react
<u>Answer:</u>
The factor that contributes to aging is: A Cells stop dividing after 50 divisions.
<u>Explanation:</u>
- Normally after 40 to 50 divisions the cells stops dividing because they had already lost too much DNA for other divisions.
- So they eventually die, making the appearance like an aged person in any individual.
- As DNA is copied in every cell division process, they tend to loose small part of telomeres in each transfer process.
- Hence, after 50 divisions these cells fails to divide resulting in aging.
Answer:
C. Acute Epiglottitis
Explanation:
Before explaining why C is the correct answer, let's look at why the others are <u>not</u> correct:
- A. GABHS is a bacterial infection that is a type of streptococcus (aka Strep). It is also the most common cause of Tonsillitis! Symptoms of GABHS typically include: Sore Throat, fever, swollen lymph nodes, and tonsillar exudates. It sounds very like what we're looking for, but notice drooling isn't a symptom found with this one!
- B. Acute Tracheitis is inflammation of the trachea often resulting from a bacterial infection. Symptoms of this condition are more breathing-related such as severe dry cough, wheezing, and even shortness of breath and cyanosis. Not what we're looking at.
- D. Acute Laryngotracheobronchitis is a common disease found in young children that is more commonly known as Croup. This disease is most often characterized by a "barking cough." Other symptoms include fever, stridor and hoarseness.
Now, WHY is C the correct answer?:
Acute Epiglottitis is, like croup, commonly found in younger children and is defined as inflammation of the epiglottis (the flap that covers the trachea when swallowing). It is often characterized by fever, sore throat, difficulty swallowing, and (more specifically) drooling! The drooling coupled with the clear bilateral breath sounds and absence of a cough help to diagnose this illness.
reaching the inner of ear due to earwax build up and he now has hearing loss
