What is the hematocrit?
What will be an ideal response?
The hematocrit is the percentage of blood composed of erythrocytes (approximately 44%) when whole blood is centrifuged.
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Which protein makes up the thick filaments?
A. Myosin B. Actin C. Tropomyosin D. Troponin E. Myopathy
How do the amount and distribution of yolk in animal zygotes affect cleavage?
What will be an ideal response?
Carbon dioxide ________ oxygen unloading and oxygen unloading ________ carbon dioxide transport.
A. increases; worsens B. decreases; improves C. increases; improves D. decreases; worsens
Which statement correctly describes what happens during expiration?
A. The external intercostal, pectoralis minor, and sternocleidomastoid muscles contract to expand the rib cage and the diaphragm contracts to flatten its dome shape. B. The external intercostal and sternocleidomastoid muscles relax to expand the rib cage and the diaphragm relaxes to return to its dome shape. C. The external intercostal, pectoralis minor, and sternocleidomastoid muscles relax allowing the rib cage to return to its unexpanded size and the diaphragm relaxes to return to its dome shape. D. The external intercostal, pectoralis minor, and sternocleidomastoid muscles contract to expand the rib cage and the diaphragm relaxes to return to its dome shape.