The thymus and bone marrow are examples of __________ lymphoid tissues and play a role in _________.ANSWERsecondary; maturation of leukocytessecondary; filtration of lymphprimary; maturation of leukocytesI AM UNSUREprimary; filtration of lymph

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

Select all of the secondary lymphatic organs.Multiple select question.ThymusSpleenLymph nodesRed bone marrow

__________ are lymphocytes that mature in the bone marrow, whereas __________ are lymphocytes that mature in the thymus.Multiple ChoiceT cells; B cellsB cells; T cellsB cells; NK cellsT cells; NK cells

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

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