<h2>dont know what your asking?</h2><h2></h2><h2></h2><h2></h2>
Answer: please add a clear picture
Colonies of cyanobacteria benefit aquatic organisms because they can be an important source of food to organisms.
The problem with cyanobacteria is that they can be harmful and in an alga bloom then can cover the surface cutting off any light to other plants and producing toxins that kill fish and other life forms.
B. is the answer hope this helps
