When the diaphragm and rib cage muscles relax
a. the chest cavity enlarges
b. inspiration occurs
c. expiration occurs
d. it is impossible to breathe
Answer: c. expiration occurs
You might also like to view...
The marsupials in Australia closely resemble the placental animals of the rest of the world. This is an example of
A. the fossil record. B. homology. C. convergent evolution. D. biogeography. E. development.
Which of the following reactions would you predict could be coupled to ATP hydrolysis to ADP + Pi to make it energetically favorable, or spontaneous? Choose all that apply
A. creatine phosphate + H2O creatine + Pi, G -10.3 kcal/mol B. phosphoenolpyruvate + H2O pyruvate + Pi, G -14.8 kcal/mol C. glucose 6-phosphate + H2O glucose + Pi, G -3.3 kcal/mol D. glucose 1-phosphate + H2O glucose + Pi, G -5.0 kcal/mol E. glutamic acid + NH3 glutamine, G +3.4 kcal/mol
When considering nomenclature for scientific names, what is the difference between the two primates, Homo sapiens and Homo erectus?
A. One is a primate but the other is not. B. They are animals of a different kingdom. C. They are animals of a different order. D. They are animals of a different species. E. They are animals of a different genus.
A(n) ____________________ organism is one that carries a gene that has been transferred to it from another species
Fill in the blank(s) with correct word