1. Circulatory system = the parts of the body that are related to the movement of blood
2. Internal system = the organs inside the body and how they function together
3. Muscular System = the part of the body that is made up of the muscles
4. Skeletal system = The bones found in the body
Answer:
The rectangular field of play used for American football games measures 100 yards (91.44 m) long between the goal lines, and 160 feet (48.8 m) (53 1⁄3 yards) wide. The field is made of grass.
Basic equipment worn by most football players include helmet, shoulder pads, gloves, shoes, and thigh and knee pads, a mouthguard, and a jockstrap or compression shorts with or without a protective cup.
NFL games are divided into four 15-minute quarters, separated by a 12-minute break at halftime. There are also 2-minute breaks at the end of the first and third quarters as teams change ends of the field after every 15 minutes of play.
NBA rules state that each team is given six timeouts each during the course of a 48-minute game, with one 20-second timeout allowed per half and each overtime period. Each team is also limited to no more than three timeouts in the fourth quarter.
False
The overtime period length may vary, but it is commonly 10 minutes long. Depending on the state, if the game is still tied at the end of the first overtime: As many additional overtime periods – golden or silver goal rules – may be played as needed to determine a winner.
An average professional football game lasts 3 hours and 12 minutes, but if you tally up the time when the ball is actually in play, the action amounts to a mere 11 minutes.
Explanation:
I think the circulatory system is the best body system because we need the heart to stay alive, many people live with only one lung. but we need the respiratory system to let oxygen in, and let carbon dioxide out.
