During the course of fish evolution, two of the gill arches evolved into ________.
A. the pectoral fins
B. the jaw
C. gills
D. the swim bladder
E. No answer choice is correct.
Answer: B
You might also like to view...
The scientists who identified a set of coordinately regulated genes, called an operon, responsible for lactose metabolism in E. coli were
A) Watson and Crick. B) Meselson and Stahl. C) Jacob and Monod. D) Hershey and Chase.
In a population of Asian elephants, the death
rate equals the birth rate. This population has
a. reached its biotic potential. b. achieved zero population growth. c. not exceeded its carrying capacity. d. exponential growth. e. geometric growth.
Population doubling time will increase with a(n) ________ average age of first birth in women
Fill in the blank(s) with correct word
What are the three common epidemiological measurements used in this exercise and by the CDC?
A) Morbidity, Mortality, and Incidence B) Mortality, Incidence and Prevalence C) Incidence, Prevalence, and Morbidity