Which scientifically investigable question is relational?

This is what i found on google “phytoplankton, tiny organisms that live in the ocean, are autotrophs. some types of bacteria are autotrophs. most autotrophs use a process called photosynthesis to make their food.” i hope this you for what your looking for

It doesn’t show the symbol

1. protection 2. homeostasis 3. storage4.blood formation5.bone marrow 6.movement