Examlex
The Crab Nebula and its pulsar were produced by a ________ supernova.
Muscle Tone
The continuous and passive partial contraction of muscles, which helps maintain posture and readiness for action.
Frequent Constipation
A condition characterized by infrequent bowel movements or difficulty passing stool that occurs on a regular basis.
Osteoporosis
A bone disease characterized by decreased bone mass and density, leading to increased risk of fractures, often occurring with age.
Bone Density
A measure of the amount of minerals (such as calcium) contained in a certain volume of bone, indicating its strength and risk of fracture.
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