KNAT Practice Exam 1 Science
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- Question 1 of 20
1. Question
The term anatomical position refers to a person standing erect with the feet forward, arms hanging to the sides, and _____.
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2. Question
Which of the following valves regulate blood flow between the right atrium and right ventricle?
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3. Question
Exchanges of substances like gases and nutrients occurs at which of the following?
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4. Question
After blood leaves the aorta, it travels to the
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5. Question
Which of the following two hormones promote sperm cell production in males?
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6. Question
The lining of the stomach is covered with rugae. What is the benefit of this?
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7. Question
Killer T cells and B cells are stimulated to act by a protein that _____ release.
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8. Question
Which of the following is usually the first line of defense in the human body when a pathogen invades?
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9. Question
A characteristic of all muscles is that they recoil after stretching, or are known to be _____.
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10. Question
Nodes of Ranvier are
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11. Question
An axon binds to a _____ to release hormones in the body.
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12. Question
While hiking, a person is startled after encountering a bear. Her palms get sweaty and her heart starts racing. Which of the following parts of her nervous system was directly stimulated?
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13. Question
When do vesicles contract and move to the presynaptic membrane?
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14. Question
Which of the following correctly describes homeostasis?
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15. Question
Menopause occurs _____.
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16. Question
Oxygen-rich blood is blood that
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17. Question
Which of the following processes begins with red blood cells giving up oxygen to other cells in the body?
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18. Question
After the trachea, the first branch that leads toward the lungs is which of the following?
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19. Question
What is a characteristic of compact bone?
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20. Question
After urine flows through one sphincter at the start of the bladder, this fluid flows through the
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