Both facts and observations. If you are having trouble understanding this concept, follow up with your teacher, as it is very important. Hope this helps!
The most appropriate statement that is explaining the effect and cause during muscle contraction is. “The release of calcium ions causes myosin and actin to attach to each other.” The activation of muscles helps in the generation of muscles that send out the signals to the neurons.
Answer:
Explanation:
A build up of plaque in the lining of an artery.Plaque is made up of fat, cholesterol, calcium, and other substances found in the blood. Over time, plaque hardens and narrows your arteries
The bones and skin protect the animal body
