Which one of the following statements about carbohydrates is true? a. carbohydrates are a friendly fuel. b. carbohydrates are fattening. c. a teaspoon of carbohydrate contains twice as many calories as the same amount of fat. d. carbohydrates are stored, rather than burned, by the body.

American college students invented football by combining what two sports?

In the 2010 ncaa men's lacrosse annual meeting, a rule change regarding "get it in/keep it in" was added to what section?

In 2009, a flu pandemic was believed to have originated when viral transmission occurred from pig to human, thereby earning the designation, "swine flu." although pigs are thought to have been the breeding ground for the 2009 virus, sequences from bird, pig, and human viruses were all found within this newly identified virus. what is the most likely explanation of why this virus contained sequences from bird, pig, and human viruses? a) the virus was descended from a common ancestor of bird, pig, and human flu viruses. b) the infected individuals happened to be infected with all three virus types. c) related viruses can undergo genetic recombination if the rna genomes mix and match during viral assembly. d) the human was likely infected with various bacterial strains that contained all three rna viruses.