It is described as relatively non specific
The answer is A because with rna G and C always go together and A and U always go together
Similar to the other types of muscle, smooth muscle contraction is caused by the sliding of myosin and actin filaments over each other. Calcium initiates contractions in a different way in a smooth muscle than in a skeletal muscle.
Smooth muscles use less energy to generate the given amount of force, can substain contractile force without fatigue & uses calcium from the sarcoplasic reticulum & extracellular space.
It affects it in many ways.
1) It makes it more hollow, allowing it to carry more oxygen
2) Because it has no nucleus it is not a "forever" cell, so they "die" once they have been alive for 3-4 months. After they "die" they must be replaced.
