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Dima020 [189]
3 years ago
5

1. Under the broken rock are layers of mostly solid rock

Biology
1 answer:
kozerog [31]3 years ago
3 0

the broken rock layers of mostly solid rock is true

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3. What body movements are due to muscles working in opposed<br> groups? Explain
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Answer:

Elbow

Explanation:

Muscle works in pairs and groups e.g biceps flexes the elbow and triceps extend it and it is called antagonistic muscle action.

The working muscle is called the primer mover or agonist. The relaxing muscle by another muscle is called synergists.

When muscles cause a limb to move through the joint range of motion,it could be synergists or antagonists.

I hope this will help you

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