Question

Muscles work in pairs. They contract and relax simultaneously. How does this help an individual?
(1 Point)
It assists in the formation of the bones.
It prevents any injury to the internal organs.
It allows the movement of bones at the joints.
It helps in the absorption of nutrients in the body

Answer 1

Answer:  

It helps in the absorption of nutrients in the body

Explanation:

Read your science textbook

Answer 2

Muscles work in pairs. They contract and relax simultaneously. It allows the movement of bones in the joint(option c)

• Muscles pull bones but they can’t push them back to their original position

• Flexors and Extensors are present in pairs

• The flexor will relax and the extensor contracts to straighten the limb at the same joint.

• The muscle usually work in pairs and groups

• This is called antagonistic muscle action

• Agonist is the working muscle and the Antagonist is the relaxing muscle

• These muscles are helpful for the movement

• By contracting they create a normal range of movement