Which of the following describes transmission of a disease by indirect contact? O Person A has acne -> Person A and Person B are physically intimate -> Person B does not develop acne
O Person A has a cold -> Person A sneezes near uninfected Person B
deer has Lyme disease -> tick bites deer -> tick bites uninfected person
Person A has malaria -> mosquito bites Person A -> mosquito bites uninfected Person B

In a study of a weight loss program, 40 subjects lost a mean of 3.0 lb after 12 months. does the weight loss program have practical significance? a. yes, because the weight loss program worked and the subjects lost a mean of 3.0 lb. b. no, because the mean weight loss of 3.0 lb after one year does not seem to justify the program. c. no, because the sample of 40 subjects was too small to determine if the program was useful. d. yes, because the mean weight loss of 3.0 lb after one year does seems to justify the program.

Energy needs, in total kilocalories per day, are greater during than any other time of life. a.childhood b.infancy c.adulthood d.adolescence

Why do rna viruses appear to have higher rates of mutation? a) rna nucleotides are more unstable than dna nucleotides.b) replication of their genomes does not involve proofreading.c) rna viruses can incorporate a variety of nonstandard bases.d) rna viruses are more sensitive to mutagens.