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1.
Biology
Which of the following is a major principle upon which cell theory is based?
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2.
Chemistry
moving down a group in the periodic table...
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3.
Chemistry
The conjugate acid for the base $HCO_3^-$
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4.
Physics
The diagram represents the motion of a runner; his speed is ...
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5.
Chemistry
Atomic mass unit nearly equals the mass of...
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6.
Chemistry
Calculate the sells potential $\text{Sn(s)}+\text{Cu}^{2+}\text{(aq)}+\text{Cu(s)}$, knowing that $E^0_{\text{Sn}^{2+}} \ \text{,} \ E^0_{\text{Cu}^{2+}}=+0.3\text{V}$
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7.
Physics
A person has a mass of 100kg on the earth, what's its mass on the moon?
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8.
Math
In the opposite figure: if $m(\angle 1)=2x-5$ , $m(\angle 2) = 4x-13$, then $m(\angle 2) = ......$
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9.
Biology
The glue cells on the contractile tentacles of Hydra used to catch prey is called
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10.
Chemistry
Which of the following is true about the electronic configuration $[Ar]4s^23d^{10}4p^{4}$?
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11.
Biology
Why men must have more red blood cells per cubic millimeter of blood than women?
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12.
Biology
what symmetry is seen in octopus?
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13.
Chemistry
The oxidation number of nitrogen in $HNO_3$ is ...
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14.
Chemistry
if the reactants' concentration is greater than the products' concentration at equilibrium then ....
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15.
Math
In the opposite figure: The value of $x$ equals:
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16.
Biology
Which is a characteristic of mosses?
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17.
Math
Determine the direction of opening of the parabola curve whose equation $y^2=-8(x-6)$?
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18.
Physics
Temperature equicalent to $50^{\circ}$C in kelvin is...
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19.
Chemistry
Carbonyl group: earbon atom bonded with ...... atom in a .....?
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20.
Math
What is the value of the statement $log_aa^n$?
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21.
Math
If $y$ varies directly with $t$, and $x=6$ when $y=9$, then what is the value of $y$ when $x=18$?
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22.
Biology
Which of the following is part of agnathic fish (without jaws)?
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23.
Chemistry
What is the volume required of a 2M KI solution to form a 1M solution with a volume of 0.2L?
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24.
Biology
What is the most common cause of cardiovascular disease?
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25.
Physics
What is the frequency in Hz of the second resonance for a one end closed tube that has a height of 15cm? Knowing that the speed of sound is 343 m\s.
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26.
Math
In the opposite figure; if $\angle \widehat{AB}=150^{\circ}$, then the value of x equals:
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27.
Math
Find the polar coordinates for the point $(1, -\sqrt{3})$?
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28.
Chemistry
Which of the following is considered matter?
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29.
Physics
A body is put in front of a concave mirror and the distance between them is 15cm and the focal point is 30cm, what are the characteristics of the body's image?
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30.
Chemistry
A property of compounds is that its components ...
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31.
Biology
Which region of a vertebrate forebrain is considered with the neutral-endocrine control of visceral activities?
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32.
Chemistry
A colloid is considered..
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33.
Physics
A bicycle has a mass of 50kg and a momentum of 250 kg.m/s, its speed equals ...
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34.
Biology
Where do producers obtain their energy?
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35.
Biology
What helps (unsegmented Fungal hyphae/ Aseptate) on fast growth
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36.
Biology
Which of the following doesn’t have an antenna:
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37.
Physics
Calculate the amount of change in entropy for a sample of water that gained 600j of heat at $27^{\circ}$C ..
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38.
Biology
The diagram shows a leaf attached to the stem of a plant. What do the arrows at X represent?
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39.
Math
In the opposite figure; the measure of the arc $\widehat{AB}$ equals:
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40.
Math
The value of the integration $\int (3x^2-4) {dx}$ equals:
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41.
Math
The number $\pi$ is:
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42.
Biology
Why do diatoms float on water?
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43.
Biology
The beak of the humming bird is used in
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44.
Biology
Which of the following is the building block carbohydrate?
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45.
Biology
Which is the smallest unit of life that can survive and reproduce on its own?
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46.
Biology
What clears waste and aids in water balance in insects
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47.
Math
Find the sixth term of the sequences: 2, 4, 8, .... ?
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48.
Physics
What is the charging of a capacitor with a capacitance of $6\mu F$ and its potential difference is 30 V?
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49.
Chemistry
If the angle of the bond is 180, what is the hybridization type?
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50.
Physics
An object immersed in a fluid has an upward force on it that is equal to the ..... of the fluid displaced by the object.
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51.
Math
What is the derivative of the function $f(x)=\frac{1}{x^6}$
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52.
Chemistry
1kg of wood dust burns faster than 1kg of a piece of wood because....
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53.
Biology
Where does protein synthesis take place?
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54.
Biology
In your heart, when the blood leaves the ventricle, it goes to:
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55.
Math
If $f(x)=2x-5$, then $f^{-1}(x)$ equals:
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56.
Chemistry
which compound has the highest polarity?
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57.
Math
Find the fifth term in the expansion of $(x+y)^{6}$?
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58.
Physics
What work is done to move 4C charge through a potential difference of 200V ?
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59.
Math
The value of $x$ in the opposite quadrilateral equals:
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60.
Physics
In standing waves, the number of antinodes ...... number of nodes.
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61.
Chemistry
The following shape represents ...
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62.
Math
$\lim_{x\rightarrow\infty}\frac{3x^4-2x+7}{5x^2+9x}=.....$
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63.
Math
What is the measure of each interior angle of a regular pentagon?
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64.
Math
From the opposite figure: the local maximum value is:
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65.
Biology
Which of the following is responsible for the production of red blood cells?
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66.
Physics
The unit of power ..
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67.
Chemistry
if $[OH^-]=10^{-5}$, Find the pH
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68.
Chemistry
Which of the following electrons are distributed according to Hund's rule?
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69.
Math
The length of the transverse axis for the hyperbola whose equation $\frac{(x-8)^2}{49} - \frac{(y+5)^2}{64}=1$ equals:
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70.
Biology
Which of the following is the building block of protein?
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71.
Biology
Which of the following is a sarcodina?
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72.
Physics
A lamp has an average power of 75W, what is its maximum power?
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73.
Physics
a car moves from at rest with an acceleration of $6 m/s^2$ during how many seconds the car velocity reaches 24 m/s?
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74.
Math
The value of $x$ satisfices the equation: $4^{x-1}+5=6$
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75.
Math
Find the equation of the line with a slop of 4 and a $y$-intercept of 5?
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76.
Biology
Which is not a trait shared by freshwater green algae and plants?
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77.
Biology
If A player falls and feels pain, what does the body release to relieve/reduce the pain?
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78.
Physics
The magnetic force acting on a wire that its length is 5m, a 2A current passes through it, oriented at right angle in a magnetic field with strength 0.6T...
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79.
Chemistry
Which of the following mole ratio for iron in the following balanced chemical equation is right?
$3\text{Fe(s)}+4\text{H}_2\text{O(I)} \rightarrow \text{Fe}_3\text{O}_4\text{(s)}+4\text{H}_2\text{(g)}$
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80.
Math
The value of $(7+4i)-(1-5i)$ equals:
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81.
Physics
The transmission of an electron from the fourth energy level to the second energy level launches ............ series.
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82.
Math
A circle of radius 3 units is drawn within a square of length 9 units, a point was randomly selected inside the square. What is the probability that is also located in the circle?
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83.
Math
What is the number of sample elements for selecting two cards with replacement, from a set of numbered cards from 1 to 8?
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84.
Physics
In the decay of an alpha particle in a nucleus, the atomic number (Z) and mass number (A) become.
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85.
Biology
Reptiles are similar to bats in all the following, except
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86.
Physics
Pendulum with a length of L equal to the gravitational acceleration g, what is the period for this pendulum in s?
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87.
Physics
A 12V battery needs ...... time in seconds to produce 600J of energy in an electric circuit that has 0.5 A current. what is the time needed?
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88.
Physics
The equation of the energy of vibration is....
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89.
Chemistry
How do we make carbon dioxide dissolve in liquid?
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90.
Math
The domain of the function $y=\sqrt{x+1}$ is:
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91.
Math
If $g(x)=x^2$, then which of the following equals $g(x+1)$ ?
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92.
Physics
The equivalent resistant in the following circuit is ..
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93.
Biology
Which is concerned with phylogenetic taxonomy
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94.
Math
Determine the type of the Function: $f(x)=x^5+x$?
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95.
Biology
Why do you experience not seeing things clearly for some seconds when you enter suddenly a well-lighted room after coming from n a dark room?
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96.
Biology
The opening of the uterus that connects to the vagina is called the:
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97.
Math
From the opposite figure: the value of $x$ equals:
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98.
Chemistry
The bond between carbon molecules is ....
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99.
Biology
Which term correctly completes the concept map shown above?
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100.
Biology
When a kid is diagnosed with hip dislocation, the doctor is expected to treat the
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101.
Biology
Which plant division is the largest on Earth today and is characterized by producing flowers and fruit?
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102.
Math
Which of the following is equivalent to the expression: $\frac{\cos{\theta}}{1-\sin ^2 \theta}$?
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103.
Physics
What is the electrostatic force in Newtons that a charge of $4\times 10^{-9}C$ has on a test charge of 1C that is 1m away? Knowing that Coulomb's constant is $9\times 10^{9} N.m^2/C^2$ ...
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104.
Math
The parent function of the opposite graph is:
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105.
Biology
What term is used to describe the ability to maintain a constant internal environment
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106.
Math
The mean of normal distribution is 34, and its standard deviation is 5, find the probability that the value of $x$ which randomly selected in this distribution is more than 24?
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107.
Math
If $y=⟨1, 3⟩ , w=⟨-1, 2⟩$ , then what is the value of $y-3w$?
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108.
Chemistry
The name of the compound in the following figure...
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109.
Math
What is the image of the point $B(2, 3)$ by translation $(x, y) \rightarrow (x+4, y-5)$?
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110.
Biology
Which of the following parts of the figure is an example of a biotic factor?
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