Answer:
bones act as lever arms
joints act as pivots
muscles provide the effort forces to move loads
load forces are often the weights of the body parts that are moved or forces needed to lift, push or pull things outside our bodies.
Explanation:
First class lever - the fulcrum is in the middle of the effort and the load. ... Second class lever - the load is in the middle between the fulcrum and the effort. Second class lever This type of lever is found in the ankle area. ... Third class lever - the effort is in the middle between the fulcrum and the load.
Theory sparrow theory proposition that taxes in busniess.
The second and fourth don't sound right. I think they are false. I'm not 100 percent on that though. but 1 and 3 sound true. especially the first one.
Produced the steam engines which then improved systems of transportation. For example, trains were essential, but relied on burning coal. The steam engine made it more efficient. For the textile industry, the sewing machine was introduced to production lines, helping the processing and usage of cotton to be more efficient.
Answer:The original purpose of the Pyramid of the Sun is unknown, though archaeologists believe it originally had an altar on top of the Pyramid. Therefore, it most likely was built to honor a deity. Unfortunately, looting over the years has reduced the material available for study.
Explanation:
