What kind of hazards should keep you away from entering a scene of an emergency?

Whic disease reduces bone density and causes the bones to become brittle

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.

Select the correct answer. what is the first thing you should look for on a food label? a. calories from fat b. calories c. serving size d. number of servings