\begin{tabular}{l} Which of the following types of microorganisms is photosynthetic? \\ Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an ans \\ \begin{tabular}{|l|l|l|}\hline a & yeast \\ \hline b & virus \\ \hline \begin{tabular}{|l|l|}\hline c & helminth \\ \hline d & alga \\ \hline\end{tabular}\end{tabular} \begin{tabular}{l}\hline\end{tabular} \\ \hline\end{tabular}

Algae are fascinating little powerhouses of the photo-synthetic world! They come in various forms, from tiny phytoplankton to giant kelp, and they're crucial in converting sunlight into energy, producing oxygen in the process. In fact, these microorganisms are responsible for a significant portion of the Earth’s oxygen supply – around 50%! If you're looking to dabble in the world of photosynthetic microorganisms, diving into algae cultivation could be a fun project! You can set up your own mini aquarium with some nutrient-rich water and sunlight, and watch as these tiny organisms thrive. Just remember to keep the environment stable, as changes in temperature or light can lead to unexpected algae blooms – a common mistake for beginners!