Producers vs. Consumers
\[
\begin{array}{|c|c|}
\hline
\textbf{Producers} & \textbf{Consumers} \\
\hline
\text{Synthesize their own food via photosynthesis} & \text{Depend on others for food} \\
\hline
\text{Examples: Plants, Algae} & \text{Examples: Humans, Animals} \\
\hline
\text{Autotrophic organisms} & \text{Heterotrophic organisms} \\
\hline
\text{Occupy the first trophic level in food chains} & \text{Occupy higher trophic levels} \\
\hline
\end{array}
\]