All of the following are male secondary sex characteristics except which one?
A. Aggression
B. Deeper voice
C. Development of pubic hair
D. All of the answers choices are male secondary sex characteristics.
Answer: D
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Centrioles
A) function as pipelines to move fluid through the cell. B) hold the cell's ribosomes in place. C) are white blood cells out of vessels. D) direct the movement of DNA during cell division. E) provide shape and stability to a cell.
In the science fiction movie The Abyss, a diver is able to breathe while his head is immersed in a specially prepared liquid pumped into a water-tight helmet attached to a suit, thus allowing him to dive without an air tank and at greater depths than possible for scuba divers. Is this purely fiction, or is it at least theoretically possible? Explain, considering the nature of alveoli and alveolar
gas exchange. Assuming it is possible, describe the composition and nature of the liquid in terms of its oxygen pressure and concentration. What will be an ideal response?
What chemical agent causes an explosive release of ACh?
a. botulinum toxin b. curare c. organophosphates d. black widow spider venom e. malathion
What part of the sternum articulates with the clavicle?
A) manubrium B) body C) xiphoid process D) neck