As air moves down the trachea, where does it enter next?
a. esophagus
b. larynx
c. primary bronchi
d. pharynx
c. primary bronchi
Biology & Microbiology
You might also like to view...
If the clonal selection theory is correct, there exists at least one lymphocyte capable of synthesizing an antibody specific to each antigen prior to exposure to the antigen.
Answer the following statement true (T) or false (F)
Biology & Microbiology
Which of the following is not true of sex-limited genes?
1.They express only in males. 2.They are found on the X chromosome. 3.They do not occur until puberty. 4.Expression is dependent on gender.
Biology & Microbiology
A protein
A. is a macromolecule. B. consists of many linked amino acids. C. may be made of two or more polypeptides. D. is correctly described by all three of these answers.
Biology & Microbiology
SCIENTIFIC LAW
What will be an ideal response?
Biology & Microbiology