Acommon positive effect gained by performing flexibility, cardio respiratory, and muscular strength exercises is that?

When studying heredity, what is the relationship of dna based and traits? super urgent !

Which of the following identifies a main culprit for america’s increasing weight gain

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.