How many of each kind of atom is in one molecules of water

2 hydrogen atoms and 1 oxygen atom

1 hydrogen atom and 2 oxygen atoms

1 hydrogen atom and 1 oxygen atom

1 hydrogen atom and 2 oxygen atoms

What is the inability of an individual or a society to achieve a minimum standard of living known as ?

Photosynthesis uses co2 and cellular respiration produces co2. we call the point when the two processes are in balance--when there is no net production of co2--the compensation point. how might you limit one of the processes in order to achieve a compensation point?

What molecules will be best used to compare different species with the exact same sequence of amino acids? why would two species have the same protein even if the molecules in question is different? (hint: transcription to translation to protein).