Iam the vanishing gland. you need me most during your early childhood years and i begin to disappear when you reach puberty. i am considered a member of both the endocrine and the lymphatic system. i secrete a hormone, which to stimulate lymphoid cells to produce t-cells. you need me to fight off diseases. who am i?

When analyzing tree rings, what do scientists assume a thin ring indicates?

9. what area of study applies scientific findings to create ways for solving problems or improving life? a biogeology b mathematics c manufacturing d engineering

Cancer cells spread to other parts of the body by entering the bloodstream. which of the following organs could prevent a cancer cell in the bloodstream from spreading, and why? a. the spleen, because it releases lymphocytes into the blood b. the peyer's patches, because they release lymphocytes into the blood c. the lymph nodes, because they release lymph into the blood d. the thymus, because it releases lymph into the blood