Which Statement Is Correct for the Ossicular System of the Ear

question 178

Multiple Choice

Which statement is correct for the ossicular system of the ear?

• A) It serves to keep the pressure on the two sides of the tympanic membrane equal.
• B) It increases the pressure of vibration as it transfers the sound wave from air in the outer ear to fluid in the inner ear.
• C) It assists in determining whether a sound comes from the front or rear.
• D) It is part of the vestibular apparatus.

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Definitions:

Nucleotide Bases

The building blocks of DNA and RNA, consisting of adenine, cytosine, guanine, thymine (DNA), and uracil (RNA).

Chargaff

Refers to Chargaff's rules, which state that DNA from any cell of all organisms should have a 1:1 ratio (base pair rule) of pyrimidine and purine bases.

35S

A radioactive isotope of sulfur, often used in biological research to label molecules in studies of molecular biology and biochemistry.

32P

A radioactive isotope of phosphorus, used as a tracer in molecular biology to study processes such as DNA synthesis and phosphorylation.