Jerry walks into the gym for his first lesson and is amazed at Wanda's ability to do a round-off back handspring and wants to be able to do this gymnastic skill too. Prior to trying this skill, which safety consideration should he think about first? His chronological age
His friend's encouragement
His physical height
His tumbling experience

His tumbling experience

Explanation:

The tumbling experience is required to be determined as in tumbling one learn to show movement on the floor. They perform the stretching exercises, flips, somersaults, handspring and handsprings. One learn tumbling from childhood, till adolescence and adulthood one gets a good hold on the body and flexibility. So, Jerry must need to know about his tumbling experience about his body flexibility.

for question 8

1: it gets the blood pumping more

2: endorphins and other neurotransmitters