  Answer   Erythropoiesis is the process by which red blood cells (erythrocytes) are produced. In human adults, this usually occurs within the bone marrow. In huma â¦ ns with certain diseases and in some animals, erythropoeiesis also occurs outside the bone marrow, within the spleen or liver.
All plants use photosynthesis as a means of food production. They also all have their cells surrounded by cell walls in place of cell membranes. Plants also have large vacuole â¦ s in their cells, and all of them have chloroplasts (which is what makes them green).n addition, they all have body plans that include leaves, stems, and roots. Most seed plants live on land. Seed plants f â¦ ace many challenges, including standing upright and supplying all their cells with water and food. They meet these two challenges with vascular tissue.
Each part of a plant has a very important function. All plants produce flowers for the same reason: to make seeds so another plant can grow. Leaves: These are the parts of the plant where food is made by photosynthesis. Leaves take in carbon dioxide from the air, water. from the soil, and energy from the sunlight. During photosynthesis, the leaves use light energy to change carbon dioxide and water into food.