Monosaccharides, since it has saccharides which is starch, & mono is 1.
Hope this helped! :D
There are tons of answers you could have.
One, for example:
Increased levels of CO2 decreases DO levels in the water and suffocates organisms, leading to population drops that can cause a genetic bottle neck effect, thus decreasing overall biodiversity. This could lead to extinction
Coordination because with out that u can't do anything