  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.
Plants are made up of two organ systems: the shoot system and the root system. For terrestrial plants the shoot system is above ground and consists of a number of organs. These include stems, leaves, and flowers.lants are autotrophic, meaning that they produce their own food (via photosynthesis), and as a result ultimately produce food for the ecosystem's consumers (such as humans). Understanding plant function is the key to enhancing crop production, preserving plant biodiversity, producing medicines, and much more.