Is the effect of exercise on heart rate and breathing rate an example of positive feedback or negative feedback? explain why.

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.

Your self esteem is an important part of your emotional and mental health. describe two benefits of having high self esteem

Which action might increase self-confidence? a: getting involved in an activity that you consider meaningful b: consulting your internal critic c: using more nonverbal communication d: observing more closely the actions of others