What is the skin condition vitiligo

According to your text, the best way to reduce the number of germs is by ventilating spaces and a. cleaning all toys, books, and materials every day. b. keeping all potentially sick individuals out of the center. c. minimizing strenuous physical activity among the children. d. cleaning, sanitizing, and disinfecting surfaces and materials.

Larry is taking a walk in the park, the pollen in the air makes him sneeze consistently what line of defense is his immune system exhibiting

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.