I am pretty sure it's D) use of electrons focused by magnetic fields.
Grow, spread, and get bigger.
I think the correct answer from the choices listed above is option A. The main producers in the aquatic environment is the phytoplankton. They are the base of several aquatic food webs. They provide food for many marine animals. Hope this answers the question.
Here is the answer. The reason why gram positive bacteria and cyanobacteria are classified together because both are considered as prokaryotes and both are aquatic and photosynthetic, meaning they both <span>live in water and make their own food. Hope this answers your question.</span>
