Rheumatoid arthritis is a disease that occurs when the body’s immune system starts attacking its own joint tissue. The symptoms are pain, inflammation, and swelling in the joints. Orthopedists (doctors who study bones) and immunologists (doctors who study the immune system) both work with patients who have rheumatoid arthritis. What is the difference between the orthopedists and immunologists who treat the disease?

burning of wood and coal

explanation:

the panel also concluded there's a better than 95 percent probability that human-produced greenhouse gases such as carbon dioxide, methane and nitrous oxide have caused much of the observed increase in earth's temperatures over the past 50 years.

d.

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due to the fact that it skipped a generation we can tell it is definitely not a dominant trait, therefore it must be recessive. i think this is right let me know!

explanation:

true                                                                                                       true true true true true true