Calcium is an important element required for muscle contraction and bone integrity.
Answer:
Schools can limit homework and lessen the amount of tests.
Explanation:
By limiting the amount of homework, it gives students the opportunity to attend extracurriculars all while maintaining healthy sleep.
Also, by using only a short number of tests, students can use the free time for more hands-on learning.
Answer: i believe the answer is lower back
Explanation:
The flexor muscles are in the front and include the abdominal muscles. These muscles enable us to flex, or bend forward, and are important in lifting and controlling the arch in the lower back. The extensor muscles are in the back. These muscles allow us to stand upright and lift objects