Which of the following groups of bones are part of the axial skeleton?
A) Pectoral girdle
B) Rib cage
C) Arms and hands
D) Pelvic girdle
Answer: B) Rib cage
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What is the relationship between ions and myelin that prevents ions from passing through channels?
A) Size: Ions are large in diameter and myelin is much smaller. B) Electrical: Ions have negative charges and myelin have positive charges. C) Solubility: Ions are water soluble and myelin is a lipid. D) Weight: Ions are light and myelin is much heavier.
Which of the following types of muscle tension is commonly used as a braking mechanism to slow limb movement?
A. eccentric B. isotonic C. concentric D. isometric
In the lac operon, the protein that binds to the operator to prevent transcription is?
A. RNA polymerase. B. DNA polymerase. C. the repressor. D. the promoter. E. lactose.
An inflammation of the heart muscle is called ____________________.?
Fill in the blank(s) with correct word