1. Exercise develops physical fitness.
2. Range of motion is how far any body part can move in any direction.
3. Muscle myofibrils are made of both thick and thin filaments. These filaments are the used in muscle contractions. The thick filaments and thin filaments slide along each other during a muscle contraction.
4. Lactic acid is removed from muscles when there is an increased amount of blood flow (usually during exercise).
5. Posture is the way a person holds their body when sitting or standing.
6. Varicose veins occur when the veins are weakened and become twisted over time. Normal veins will flow in one direction and there is no back flow because of the valves. When veins are weakened and the valves don’t work properly, the blood can collect in your legs.
7. Antagonistic muscles pair with agonist muscles (best example is the bicep-tricep pair). This means that as one muscle contracts, the other will relax.
Answer:
what you mean . ? were supposed to ask a question . ?
Explanation:
The correct answer is the fourth option. The other three are grammatically incorrect.
Answer:
The correct answer to this open question is the following.
Unfortunately, you did not include the article, a link to it, the name of the article, or the author.
However, trying to help you, we can comment on the following.
We are assuming you are talking about the history of aviation.
So let's go back in time and place our first date in 1903 when the famous Wright brothers -Oliver and Wilbur- made the first controlled flight against all odds.
In 1919, and after many tries, there was a major goal accomplished when the airplane NC4 crossed the Atlantic Ocean for the first time.
Here comes Charles Lindgergb. In 1927, he literally flew solo. He piloted a nonstop flight from New York to France. The nave of the airplane: the Spirit of St. Louis.
Passenger flights crossing the Atlantic Ocean started in the 1940s and increased in the 1950s.
One decade later, in 1960, the impressive 747 was released by Pan American Airlines, one of the most renowned companies of that time.
Explanation:
london, which has highest ..............
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