Answer:
The answer to this question is true. Swinging a tennis racket against a ball is an example of a third class lever.
Explanation:
Levers are examples of simple machines that makes work easier by minimizing human effort to do work.
Hepatitis
transmission- oral sex
symptoms- nausea, abdominal pain,dark urine, joint pain
treatment- no specific
influenza
transmission- air (coughing,talking,sneezing)
symptoms- pain in the muscles, cough, body chills, nasal congestion
treatment-fluids and activity modifications
cancer
possible causes- changes too genes, lifestyle factors, family history
symptoms- fatigue, weight loss or gain, eating problems, swelling or lumps
treatment- chemo, surgery, hormone therapy, bone marrow
