The best way to obtain all the essential nutrients is to eat a variety of foods from the basic food  groups. true or false

Which of the following is a positive response to stress? select one: a. smiling b. naming it c. working more d. joking about how stressed you are

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.

Which statement about adolescene is false