Write an essay, of at least 400 words, about cellular respiration, muscle contractions, and sore muscles. how is cellular respiration, both anaerobic and aerobic, instrumental in muscle contractions? what is eccentric exercise? what are two causes of muscle soreness after eccentric exercise? be sure to include information about lactic acid and delayed onset muscle soreness. what are some treatments for muscle soreness?

How can you approximate the number of calories required to keep you in energy balance?

In 2015, about ten percent of total u.s. energy consumption was from renewable energy sources. renewable energy plays an important role in reducing greenhouse gas emissions. when renewable energy sources are used, the demand for fossil fuels is reduced. sanjay and his family want to cut back on their use of non-renewable resources at home. they are thinking of an alternate way to heat their home without adding more greenhouse gases or pollutants to the environment. which renewable resource would not fit into their plan? a) solar power b) burning wood c) constructing a wind turbine eliminate d) generating hydroelectric power

What are some natural processes that represent physical and chemical changes?