What are two things that happen as the blood passes through the lungs? y’all

Dna is colied into chromosomes in a cell

This is the process of making a prediction based on the results of prior observations of similar events.

Which of these is not an example of molecular homology? 1. use of dna and rna as genetic material 2.use of glycolysis as the first step in cellular respiration in both plants and animals 3. the lack of an igf-1 gene in prokaryotes 4. the use of aldolase b to break down fructose in bacteria, plants and animals