Assume the volume of air inhaled and exhaled is 500 ml. calculate the difference (in ml) between the amount of oxygen inhaled and the amount of oxygen exhaled

Describe the response the kidneys have to dehydration and excessive water intake. what happens to the concentration of urine in each case ?

Put the following processes of protein synthesis in the correct order: - dna strands unwind and separate - mrna copies dna according to complimentary base pairing - trna's anticodons bring amino acids to the corresponding mrna codons - amino acids bind to each other making a protein - mrna leaves the nucleus - a stop codon is reached, the newly formed protein is released to go do its job for the cell

What is the difference between an igneous, sedimentary and metamorphic rock