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.
organisms to make 5 kingdoms: â âMonera â âProtista â âFungi â âPlantae â âAnimalia The new Kingdom Six KingdomsSix Kingdoms âRecently, biologists recognized that Monera were composed of distinct groups: and âRecently, biologists recognized that Monera were composed of two distinct groups: Eubacteria and Archaebacteria.