For muscles to contract, ____ ions need to be released from the sarcoplasmic reticulum.
A) sodium
B) calcium
C) phosphorous
D) oxygen
E) nitrogen
Correct Answer:
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Q21: The _ is most like an endoskeleton.
A)
Q22: When you bring your hand to your
Q23: When a muscle contracts, the opposing muscle
Q24: The _ is a bone of the
Q25: Osteoarthritis is more common in older adults
Q27: Bones store _, which is important for
Q28: Gibbons are able to swing through the
Q29: The _ attaches to the lower leg
Q30: The pectoral girdle and the pelvic girdle
Q31: Compact bone contains _.
A) thick concentric layers
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