The major protein found in thin filaments is ________; the main protein found in thin filaments is ________.
A. actin; myosin
B. myosin; actin
Answer: A
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A red blood cell contains a large nucleus; it is thicker near the center and thin around the rim of the cell.
Answer the following statement true (T) or false (F)
Todd is 13 and lives in an urban apartment. He spends most of his time watching TV and eating "junk" food. One afternoon, during recess, he falls on the playground and breaks his leg. Although he appears to be healthy, his leg takes longer to heal than expected. What might be the cause of the longer healing time?
Answer the following statements true (T) or false (F)
1. Obese individuals typically display increased anterior pelvic tilt and lumbar lordosis. 2. Backing up a car has been identified as an activity of daily living which requires extreme range of motion in the cervical region. 3. A slight forward lean during sitting increases the load on the spine. 4. To minimize postural adaptations, a back pack load should be as high as possible near the shoulders. 5. Lumbar spondylolysis is more prevalent in men than women.
The high metabolic rate of infants puts them at increased risk of metabolic
A. alkalosis. B. acidosis.