EVERYDAY SCIENCE

Detailed explanation-1: -As you probably know, the organisms at the base of the food chain are photosynthetic; plants on land and phytoplankton (algae) in the oceans. These organisms are called the producers, and they get their energy directly from sunlight and inorganic nutrients.

Detailed explanation-2: -The very bottom of the food chain is the soil. The soil contains important nutrients that plants need to grow. Moving up to the next level, there are plants that grow in the soil.

Detailed explanation-3: -As seen in the figure below, the bottom trophic level is known as the primary producers. These are usually plants like phytoplankton, algae, and seaweed. They can make their own food (usually photosynthesizing sugars from the sun), and do not need to consume other plants or animals.

Detailed explanation-4: -At the bottom of the pyramid, you have producers. These are usually plants or other photosynthetic organisms, such as algae or photosynthetic bacteria. Producers are autotrophs, meaning they are self-feeding organisms that do so by making their own organic molecules.