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Question 1 of 50
1. Question
Bile is a substance secreted to help digest fats. Bile is stored in the:
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Question 2 of 50
2. Question
Which element in the protein hemoglobin, found in red blood cells, is responsible for binding oxygen?
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Question 3 of 50
3. Question
When a blood vessel is injured, which of the following is responsible for clotting?
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Question 4 of 50
4. Question
If CaCl2 is mixed with Na2SO4 in aqueous solution, which of the following is a possible product?
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Question 5 of 50
5. Question
The Earth is about 4.5 billion years old. About how many years ago did life first appear?
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Question 6 of 50
6. Question
The sun’s energy reaches the Earth’s surface primarily in the form of:
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Question 7 of 50
7. Question
Which type of rock would likely be found at the bottom of a river bed?
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Question 8 of 50
8. Question
Which of the following statements about the Earth is true?
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Question 9 of 50
9. Question
If an unbalanced force acts on an object, then the object will begin to accelerate according to:
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Question 10 of 50
10. Question
The potential energy of an object with a mass of 5kg that is placed 20 meters above the surface of the earth is most nearly:
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Question 11 of 50
11. Question
In meiosis, one parent cell becomes how many daughter cells?
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Question 12 of 50
12. Question
One of the reasons bacteria can be so deadly is because they multiply very quickly. E. coli has a doubling time of around 15 minutes. This means that if 100 bacteria are left alone for 2 hours, they will multiply to become:
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Question 13 of 50
13. Question
Organisms which help one another survive by providing a mutual benefit to each other are
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Question 14 of 50
14. Question
In taxonomy, which classification comes after ‘family’?
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Question 15 of 50
15. Question
All of the following are phenotypic traits except for:
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Question 16 of 50
16. Question
The cell membrane is a structure composed primarily of:
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Question 17 of 50
17. Question
Of the following layers of the atmosphere, which is the closest to the earth’s surface and contains the majority of clouds?
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Question 18 of 50
18. Question
Which of the following body systems is most closely associated with the immune system?
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Question 19 of 50
19. Question
One of the primary characteristics of a bacteria is its:
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Question 20 of 50
20. Question
Which of the following planets has a perfectly circular orbit?
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Question 21 of 50
21. Question
Sound waves will travel the fastest in a medium that is:
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Question 22 of 50
22. Question
A calorie is actually a measure of energy, and is equivalent to how many Joules?
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Question 23 of 50
23. Question
What is the molecular weight of the compound C2H5O?
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Question 24 of 50
24. Question
Craig ran 2.5 miles on his afternoon run. How many feet did he run?
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Question 25 of 50
25. Question
The earth’s surface is covered by approximately what percent water?
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Question 26 of 50
26. Question
Blood that flows back from the body will enter the heart through the:
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Question 27 of 50
27. Question
A nerve impulse is transmitted through your nervous system primarily by:
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Question 28 of 50
28. Question
All magnets have two poles which can be used to predict the direction of their magnetic waves. These two poles are the:
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Question 29 of 50
29. Question
Approximately how many bones exist in the human body?
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Question 30 of 50
30. Question
The nucleus of an atom is composed of:
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Question 31 of 50
31. Question
What is the second most abundant gas in the atmosphere?
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Question 32 of 50
32. Question
As light passes through a substance, the incident angle changes, meaning the light’s entering angle is different from its existing angle. This is an example of:
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Question 33 of 50
33. Question
If one tectonic plate slides under another, the process is known as:
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Question 34 of 50
34. Question
Carbon dioxide can be consumed and converted into glucose by what type of organism?
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Question 35 of 50
35. Question
Two separate weather fronts will have air that is of different:
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Question 36 of 50
36. Question
Plants are autotrophs, meaning that they:
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Question 37 of 50
37. Question
Plant and animal cells both have cell membranes and nuclear membranes. However, plant cells have a structure that animal cells do not, known as a:
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Question 38 of 50
38. Question
Muscles in the human body require what energy compound to function?
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Question 39 of 50
39. Question
If a bowling ball is pushed with 20 Newtons of force and has a mass of 4 kg, what is its initial acceleration?
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Question 40 of 50
40. Question
When a human cell divides in mitosis, the two daughter cells will each have:
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Question 41 of 50
41. Question
In an electromagnetic wave, as the frequency of the wave becomes greater, what becomes shorter?
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Question 42 of 50
42. Question
Which of the following time periods is the longest?
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Question 43 of 50
43. Question
Water has a heat capacity of 4.2 J/g*C. This means that to heat up 100 mL of water 1 degree Celsius, we need:
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Question 44 of 50
44. Question
In the lily flower, the red color is dominant and the white color is recessive. This means that if you cross a homozygous red flower with a white one, the offspring will be:
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Question 45 of 50
45. Question
Which of the following is a characteristic of the tundra ecological biome?
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Question 46 of 50
46. Question
A train travels at 25 mph for 3 hours. How far did the train move?
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Question 47 of 50
47. Question
A solution contains 0.1 molar hydrogen ions (H+). This means the solution is likely:
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Question 48 of 50
48. Question
What is the pH of water?
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Question 49 of 50
49. Question
Which of these would be a normal resting heart rate of an adult?
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Question 50 of 50
50. Question
Which blood cells are responsible for delivering oxygen to the body?
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