Diatoms are mostly asexual members of the phytoplankton. Diatoms lack any organelles that might have the 9 2 pattern. They obtain their nutrition from functional chloroplasts, and each diatom is encased within two porous, glass like valves. Which question would be most important for one interested in the day-to-day survival of individual diatoms

How do diatoms with their glasslike valves keep from sinking into poorly lit waters?

Explanation:

The aforementioned functions and characters answer the question on how diatoms with glasslike valves keep sinking in poorly lit waters.

They are Asexual, and as such need no sexual activity to occur and can easily make their food from dim light with their highly functional chloroplasts