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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Question 2 of 20
2. Question
Which of the following valves regulate blood flow between the right atrium and right ventricle?
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Question 3 of 20
3. Question
Exchanges of substances like gases and nutrients occurs at which of the following?
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Question 4 of 20
4. Question
After blood leaves the aorta, it travels to the
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Question 5 of 20
5. Question
Which of the following two hormones promote sperm cell production in males?
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Question 6 of 20
6. Question
The lining of the stomach is covered with rugae. What is the benefit of this?
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Question 7 of 20
7. Question
Killer T cells and B cells are stimulated to act by a protein that _____ release.
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Question 8 of 20
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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Question 9 of 20
9. Question
A characteristic of all muscles is that they recoil after stretching, or are known to be _____.
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Question 10 of 20
10. Question
Nodes of Ranvier are
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Question 11 of 20
11. Question
An axon binds to a _____ to release hormones in the body.
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Question 12 of 20
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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Question 13 of 20
13. Question
When do vesicles contract and move to the presynaptic membrane?
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Question 14 of 20
14. Question
Which of the following correctly describes homeostasis?
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Question 15 of 20
15. Question
Menopause occurs _____.
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Question 16 of 20
16. Question
Oxygen-rich blood is blood that
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Question 17 of 20
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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Question 18 of 20
18. Question
After the trachea, the first branch that leads toward the lungs is which of the following?
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Question 19 of 20
19. Question
What is a characteristic of compact bone?
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Question 20 of 20
20. Question
After urine flows through one sphincter at the start of the bladder, this fluid flows through the
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