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The two threadlike proteins that slide to generate a muscle contraction are :

vietquocnguyen

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The two threadlike proteins that slide to generate a muscle contraction are :

The two threadlike proteins that slide to generate a muscle contraction are

A) actin and myosin.
B) myosin and acetylcholine.
C) ATP and calcium.
D) calcium and actin.
E) acetylcholine and ATP.

Question 2

When pressure increases, flow:

A) stays the same. B) varies. C) increases. D) decreases.

Question 3

The trachea begins at the level of the ________ cervical vertebra and ends at the level of the ________ thoracic vertebra.

A) sixth, eighth B) sixth, sixth C) fourth, third D) sixth, fifth

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vietquocnguyen Author

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Helped a lot

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Thanks for your help!!

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