D. Plant development is not all embryonic, as it is in animals. Plants are vitally important to life on earth. A. Plants are the primary source of food production for all life on earth. B. Plants create the terrestrial environment. C. Plants replenish atmospheric oxygen, which is necessary for all animal life.
Plants are vitally important to human existence.
A. Plants as food 1. Fruits, vegetables, nuts 2. Grains - bread, pasta, beer 3. Food for livestock and fish 4. Oils, starch, sugar 5.