Which is a structure of the lymphatic system?
kidney
bone marrow
stomach
thyroid

Disinfection of impression materials is usually accomplished by a. sterilization with high heat. b. spray or immersion in a chemical disinfectant. c. sterilization with steam under pressure. d. allowing the impression to sit 24 hours in water until all the organisms die.

In what part of the body does the most muscle activity happen?

Why does the earth spin slowly, not faster? is it possible to prove it scientifically? can you prove it with math?