A. Nutrients, vitamins would also be a correct answer
Primary producers are usually the start of a food web. They make their own energy by converting carbon dioxide sunlight and water into food. Then a secondary producer would be the second part of the food web. They usually are herbivores so they only eat plants, which would be the primary producer. Next, is decomposers, decomposers are organisms break down what’s left of dead or decaying organisms like animals and plants. Hope this helped have a great day :-)
Cell walls, which are found in plant cells, maintain cell shape. Some animal cells dont need to maintain shape. Such as muscle cells, they are constantly moving.
