CO2 is produced when inhaled oxygen combines with carbon atoms from carbohydrates or lipids. CO2 is a breakdown product of the carbohydrates or lipids reduced in cellular respiration. CO2 is a breakdown product of the carbohydrates or lipids oxidized in cellular respiration. CO2 is produced when:

How is ribosomal rna useful as a molecular clock? a. a large portion of the dna ring is not vital to structure or function, allowing it to accumulate neutral mutations. b. its rate of mutation increases over time as organisms continue to evolve and differentiate from each other. c. a slow mutation rate makes it useful for determining evolutionary relationships between ancient species. d. it is only found in select organisms, making it easier to compare relationships between species that have it.

Match with o for organic and i for inorganic for each compound

The distant ancestors of tigers may have had bodies without stripes. use the theory of natural selection to explain how tigers may have evolved to have stripes.