Mr. Parker 31. Which of the statements below gives
the best definition of gas exchange?
a. Swapping oxygen for digested
food in the gut capillaries
b. Using energy to breathe
c. Exchanging inhaled air for
exhaled air in the lungs
d. Exchanging oxygen for carbon
dioxide in the lung alveoli

Zoo geographic regions are characterized by the presence of specific groups of animals these regions are determined by the taxonomic or phylogenetic relationships of animals. the map shows the zoogeographic regions proposed by the naturalist alfred russel wallace in 1876. the similarities of organisms in which two areas numbered above provide the best evidence for common ancestry between the organisms in both locations ?