The are cluster of tissue on the sides of the throat. lymph nodes
lymph nodes

spleen
spleen

tonsils
tonsils

lymph vessels
lymph vessels

Which examples are relevant sources for students to use in research? check all that apply. a journal entry written by a professor who is considered an expert a report written by an independent government source a presentation by a company that includes paid information a document published by a renowned organization a scientific paper put out by a non-profit organization a blog whose author tries to sell a product or service