match each component of the circulatory system with its function heart lungs kidneys blood blood vessels

Which of these are fast-acting compounds that attack ocygen-dependent tissues known to be particularly sensitive to these compounds? a.nerveb.vesicantsc.cyanide compoundsd.pulmonary

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.

Mr. thomas has an outstanding balance of $128.75 and owes a copay of $30.00 for today’s visit. how much money should be requested from mr. thomas at check out?