Answer:Water masses give a very robust representation of the thermohaline state of the ocean and ocean circulation. ... This water body shows extremely stable vertical stratification, and its water density changes from ~1,011 kg/m3 at the ocean surface to ~1,016 kg/m3 at 100‐m depth.
Explanation:
To absorb nutrients and help us grow and to get rid of harmful bacteria
The awnser is b there is a mutation in the gene