In the embryo and fetus it takes place in a variety of sites including the liver, spleen, thymus, lymph nodes, and bone marrow; from birth throughout the rest of life it is mainly in the bone marrow with a small amount occurring in lymph nodes. Called also hematogenesis, hemogenesis, and hemopoiesis. extramedullary hematopoiesis the formation and development of blood cells outside the bone marrow, as in the spleen, liver, and lymph nodes.
Furthermore the taxon Monera is paraphyletic. The term moneran is the informal name of members of this group and is still sometimes used (as is the term prokaryote) to denote a member of either domain.
All organisms that fall into the Moneran kingdom are considered prokaryotes. They are the simplest and earliest life forms on the planet. Bacteria are part of the Moneran kingdom. All members of the kingdom Monera have no nuclei in their cells.All genetic material in these cell floats around in the cytoplasm.They have plasmid DNA. Monerans reproduce both sexually and asexually. digest their food outside of the cell and then absorb the nutrients.hey are the simplest and earliest life forms on the planet. Bacteria are part of the Moneran kingdom. All members of the kingdom Monera have no nuclei in their cells. All genetic material in these cell floats around in the cytoplasm. They have plasmid DNA.