What are maple trees algae and wheat?

Maple trees are deciduous trees known for their distinctive leaves and vibrant fall colors, often associated with the production of maple syrup. Algae are simple, photosynthetic organisms found in water, playing a crucial role in aquatic ecosystems by producing oxygen and serving as a food source for various organisms. Wheat is a cereal grain that is a staple food worldwide, cultivated for its seeds, which are ground into flour for various food products. Together, these represent important components of terrestrial and aquatic ecosystems and human agriculture.