Yes, FDG is highly radioactive because the excretion of FDG makes urine extremely radioactive.
The lymphatic system includes a network of vessels, ducts, and nodes, as well as organs and diffuse tissue that support the circulatory system. These structures help to filter harmful substances from the bloodstream. Your Welcome.
A lava dome would most likely be composed of a very viscous lava rich in silica like a rhyolite which would cause it to dome upwards and solidify quickly rather than spread out over the surface of the earth like a fissure eruption which more likely would be like a basalt much less viscous and flowing more freely.
It changes because it goes through phases of growth and changes size and it developed more.
Hope this helps.
