The body region where a ciliary escalator helps to sweep microbes trapped in mucus away from that body site is the ________.
A. respiratory tract
B. urinary tract
C. skin
D. digestive tract
E. eyes
Answer: A
You might also like to view...
________ refers to the removal of an amino group from an amino acid. One mechanism for this removal is ________, in which the amino group is transferred to an acceptor molecule.
A. Deamination; transamination B. Deamination; hydrolysis C. Transamination; deamination D. Hydrolysis; transamination
The most recent common ancestor of a bird and a turtle is also the most recent common ancestor of a bird and which other group?
A. snake B. human C. crocodile D. frog E. None of the of the answer options is correct.
Which of the following is not a feature of a bacterial artificial chromosome (BAC) vector?
A. CEN sequences B. origin of replication (ori) C. par genes D. selectable antibiotic resistance gene E. cloning site within the ?-galactosidase gene
Indicate the products of aerobic respiration.
A. Water B. CO2 C. NADH D. ATP E. O2 F. All of the choices are correct.