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2.
Muscle tissue requires a great deal of ________________ to do its work.

3.
Proper _____________ is needed to keep muscles firm and strong.

4.
The main sources of energy in the diet are _______________ and ____________.

5.
_____________ type of muscles causes bones to move.

6.
_____________ muscle tissue composes the wall of the heart

7.
____________ muscles are found in the walls of internal organs and are involuntary muscles.


Sagot :

Answer:

2. contractions

3 oxygen

4 carbohydrates and protein

5.Skeletal muscles

6 Cardiac muscle

7 smooth muscle

Explanation:

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