Jim Crow laws were laws that led to the systematic segregation and oppression of African Americans in the United States between 1876 and 1965. Jim Crow laws were a series of laws that were created and enforced at the state and local level to segregate and oppress African Americans from receiving access to state resources and institutions like education and others. The system was formally enforced by the police and by the courts. For example African Americans could be disallowed from entering restaurants or were forced to use specific water fountains or could not enter certain schools. The police in the South generally where the laws existed would enforce these laws brutally at times as well as the courts.
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.
It is also known as a <span>surplus. </span>