Ason brings his father into the clinic, stating that his father's color has changed to bluish around the mouth. the father is confused, with a respiratory rate of 28 breaths per minute and scattered crackles throughout. the son states this condition just occurred within the last hour. which of the following factors indicates that the client's condition has lasted for more than 1 hour?

a. son's statement
b. crackles
c. respiratory rate
d. cyanosis

The earth consists of a variety of different organisms. despite their diversity, however, some similarities on the structural and metabolic levels may be seen. these similarities can be attributed to a. similarities among organisms in their proteins and nucleic acids. b. the ability of organisms to readily adapt to sudden environmental changes. c. similarities in organisms' habitats and niches. d. the ability of all organisms to interbreed and produce new species.

Which statement about dna replication is true? a. eukaryotes only have one circular chromosome that unwinds at multiple locations. b. eukaryotes can only replicate one segment of a chromosome at a time. c. prokaryotes can only replicate their single circular chromosome in the nucleus. d. prokaryotes only have one origin of replication to initiate replication.

Approximately what portion of the foods that we eat have been genetically modified in some way? a.fewer than 10% b.about 50% c.nearly 100%