The 2009 H1N1 flu virus

A) was an avian flu virus.
B) was spread by mosquitoes.
C) evolved through the genetic reshuffling of viruses that infect humans, birds, and pigs.
D) killed over 50 million people worldwide.


Answer: C

Biology & Microbiology

You might also like to view...

Simple multicellular organisms show which of the following characteristics?

A. All of these options are characteristics of simple multicellular organisms. B. adhesion of cells C. little differentiation of specialized cell types D. little communication between cells E. little transfer of resources between cells

Biology & Microbiology

Rubisco combines ribulose bisphosphate with carbon from

A. ATP. B. glucose. C. carbon dioxide. D. carbon monoxide. E. organic compounds.

Biology & Microbiology

The ultimate source of all energy in a

terrestrial ecosystem is a. the organic matter in all the organisms of the ecosystem. b. electrons from water molecules. c. sunlight. d. ATP. e. inorganic mineral ions in the soil

Biology & Microbiology

Concerning growth in genome size over evolutionary time, which of these is LEAST associated with the others?

A) orthologous genes B) gene duplications C) paralogous genes D) gene families

Biology & Microbiology