Leukocytes develop from hematopoietic stem cells in the ______.Multiple choice question.liverred bone marrowspleenthymus

Leukocytes develop from hemopoietic stem cells in the bone marrow in response to hormones called ______ and ______.Multiple choice question.colony-stimulating factors; erythropoietincolony-stimulating factors; interleukinsinterleukins; erythropoietin

Red blood cells are produced by Blank______ cells in the red bone marrow.Multiple choice question.leukocytestemfibroblastlymphocyte

Most blood cells form in ______ tissue in the red marrow of certain bones.Multiple choice question.lymphatichemopoieticadiposeepithelial

Diapedesis is the movement of leukocytes out of ______.Multiple choice question.the bone marrowthe liver and spleenblood vessels

The hollow parts of certain long bones contain ______ tissues that produce most blood cells. Multiple choice question.lymphatichematopoieticcartilaginousosseous