  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.
Homology: Leave It To the Plants. In the following photos of plants, the leaves are quite different from the normal leaves we envision. Each leaf has a very different shape and function, yet all are homologous structures, derived from a common ancestral form.The pitcher plant and Venus' flytrap use leaves to trap and digest insects.The bright red leaves of the poinsettia look like flower petals.The cactus leaves are modified into small spines, which reduce water loss and can protect the cactus from plant-eaters.omology: Leave It To the Plants. In the following photos of plants, the leaves are quite different from the normal leaves we envision. Each leaf has a very different shape and function, yet all are homologous structures, derived from a common ancestral form.