C. producer, the corn creates its own 'food' with photosynthesis. It's easier to remember as a flow chart producer(typically plants)->primary consumer(mostly herbivores)->secondary consumer(predators and other meat eaters) and decomposers(usually fungus) eat basically everything.
Specialized cell junctions<span> occur at points of cell-cell and cell-matrix contact in all tissues.</span>
C. Protons and electrons must be equal as protons have a + charge and electrons are - so they cancel out
