Mucus-secreting cells and cilia in the bronchi serve what function?
a. help air exchange
b. trap and remove bacteria and airborne particles
c. destroy inhaled bacteria
d. warm inspired air
e. increase carbon dioxide removal
B
You might also like to view...
Actinomycetes are usually found in ________ habitats.
A. freshwater B. marine C. medical D. soil
Answer the following statements true (T) or false (F)
1. Animal biomass exceeds plant biomass in most ecosystems. 2. Air pollutants can increase heritable mutations. 3. Insect densities tend to decrease in elevated CO2, all things being equal. 4. Biomagnification of chemicals such as DDT results in lower trophic levels becoming enriched in these chemicals.
What is the chemical equation for glucose?
A) C2H4O2 B) C4 H8O4 C) C6H12O6 D) C8H16O8
Which organisms use negative pressure to move air into the lungs?
A. humans B. ducks C. mice D. iguanas E. All of these use negative pressure to move air into their lungs.