Which of these are lost when ur body perspires? a. oxygen and calcium b. calcium and sodium c. sodium and potassium d. potassium and oxygen

The structure shared between the male reproductive system is the

What advantage is the cell wall in relationship to osmotic pressure

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.