1.
Chemistry
Which of the following increases in size when transformed form liquid to solid?
2.
Biology
For the DNA strand 5'-A-C-C-G-T-G-A-C-A-T-T-G-3', the correct compliment DNA would be
3.
Physics
A person pushed a box with a mass of 40kg for a distance of 10m with a constant speed on a horizontal surface its kinetic energy coefficient is $\mu = 0.1$, calculate the work of friction in $J$. (assume that the acceleration of gravity $g=10m/s^2$)
4.
Biology
Which of the following energy transformations occurs only in autotrophic organisms?
5.
Math
What is the derivative of the function $f(x)=\sqrt{7}$
6.
Chemistry
When the electronegativity difference between the two atoms is zero, then the compound is....
7.
Biology
Compared with the fish living in the conditions shown in the figure, panel A, the fish living in the conditions shown in panel B are likely to experience
8.
Biology
The key difference between animal-like protists and animals is that animal-like protists are
9.
Biology
In what era did the dinosaurs become extinct?
10.
Chemistry
The percent by mass of a solution containing 5g of dissolved solute in 50g of water...
12.
Physics
A 100n horizontal force is applied on a 20kg body and moved it with the same direction of the force, the gained acceleration of the body in $m/s^2$ is ....
13.
Biology
What is the role of cyclic proteins in the cell?
14.
Math
A set of data is distributed naturally with arithmetic mean equals 12 and standard deviation2, then what is the percentage of $p(10\leq x \leq 16)$ ?
15.
Physics
A racing car increases its velocity (speed) from 4m/s into 36m/s in a time interval = 4s the acceleration of the car in $m/s^2$ unit equals?
16.
Biology
A Protein that makes up the hair, nails, and animals horns
17.
Chemistry
The type of reaction in $\text{C}_2\text{H}_6+\text{Cl}_2\rightarrow C_2H_5Cl$ is ...
18.
Physics
A positive charge of $5\mu C$ is put 30cm from a negative charge of $-4\mu C$, What is the magnitude of the force between them? ($K=9\times 10^9 N.m^2/C^2$)
19.
Biology
Rather than exploring an animal's intelligence, scientists interested in mental skill focus on the animal's
20.
Chemistry
Which of the following is an oxidation reaction?
21.
Chemistry
The name of the compound in the following shape ....
22.
Math
Find the equation of the straight line with slope 4 and passes through the point (-3, -6)?
23.
Chemistry
What's the result of the acetone reduction?
24.
Biology
Malaria is caused by the parasitic protist
25.
Biology
Where do light dependent reactions occur during photosynthesis?
26.
Biology
The cancer drug vinblastine interferes with cancer by preventing.
27.
Physics
The energy of a photon is ...
28.
Math
In the opposite figure; the measure of angle $\theta$ equals
29.
Chemistry
how many moles does a 66g of $\text{CO}_2$ has? knowing that C=12, O=16, H=1 ....
30.
Math
Find the exact value of $\cos 135^{\circ}$ ?
31.
Math
The opposite figure shows number of students successfully passing each subject. the number of students who did not succeed in chemistry equals:
32.
Math
What is the common difference of the arithmetic sequence in which its 5th term is 16, and its first term = -8
33.
Physics
The precision of the measurement of an instrument is ...
34.
Biology
What is the name of the structure shown in the picture?
35.
Physics
What is the induced electromotive force produced from the movement of 1m wire at a speed of 4m/s perpendicular to a magnetic field of strength 0.5T?
36.
Math
in the trapezoid $DEGH: x, y$ are midpoints of its legs, find $DE$?
37.
Math
In the opposite figure; the value of $x$ equals:
38.
Chemistry
Which of the following does not have a hydrogen bond?
39.
Math
Find the value of the function $f(x) = 2x^2-8$ at $x=-1$
40.
Biology
During glycolysis the number of ATP molecules used and produced are
41.
Biology
Which one of the following is a simple sugar?
42.
Chemistry
$2\text{Na(s)}+\text{Cl}_2\rightarrow \text{2NaCl(s)}...$
43.
Math
The disc is divided into 8 equal sectors, what is the probability of spinning an odd number?
44.
Math
Find the number of sides for a regular polygon, if the measure of its exterior angle equals $30^{\circ}$
45.
Physics
If the specific heat of zinc is $388j/kg^{\circ}C$ then 97j of heat is enough to ....
46.
Physics
The power of an electric motor with work of 30000J during 30s ....
47.
Math
The component form of the vector V where $|v|=8 \ \ \ , \ \ \ \theta =45^{\circ}$ is:
48.
Math
How many ways can a person enter a mosque which has five doors and exit from a different door?
49.
Chemistry
What is the order of the following chemical reaction? $R=k[A]^1 \cdot [B]^2$
50.
Chemistry
Which of the following compounds is an Alkane....
51.
Math
Determine the type of the Function $f(x)=2x-x^4$?
52.
Chemistry
The vapor pressure effect on 1 mol NaCl is lower than the vapor pressure effect on.....
53.
Math
The inverse function of $f(x)=18-3x$ is:
54.
Math
The parabola whose equation $x^2=8(y-4)$ is opened to:
55.
Math
If $\triangle ABC$ is isosceles, find the length of side $BC$?
56.
Biology
What four features do all chordates share at some point during development?
57.
Chemistry
The oxidation number of chromium in $K_2CrO_4$ is...
58.
Biology
Which of the following statement is true about mutations?
59.
Biology
Which is considered a general or nonspecific immunity in the body?
61.
Chemistry
if $[H^+] < [OH^-]$ then the solution is
62.
Math
Find the value of b if: $3-2bi=3+8i$
63.
Chemistry
The name of the compound in the following shape ...
64.
Biology
Sea stars feed by .........
65.
Biology
It Supports the cell, maintains its shape, and stabilizes the organelles in the cell ....
66.
Biology
The danger of AIDS is that…
67.
Math
The center of the ellipse whose equation $\frac{(x+2)^2}{36}+\frac{(y-5)^2}{9}=1$ ; the point
68.
Biology
The portion of the DNA molecule that can vary is its
69.
Math
Find the value: $\lim_{x\rightarrow 4} \frac{x^2-16}{x-4}$ ?
71.
Chemistry
What are the two last electronic configuration notation in the element silver $\text{Ag}_{47}$?
Knowing that $\text{Kr}_{36}$
72.
Physics
The relation between a concave mirror's center of curvature C and the focal distance F is ....
73.
Biology
Two adaptations that have helped all flowering plants succeed are
74.
Physics
The heat absorbed or released from an object does not depend on its ...
75.
Physics
When connecting two resistors, R1, R2, in series, you can calculate the current using which formula
76.
Chemistry
What's the type of reacting shown?
$\text{CH}_3-\text{CH}_3\rightarrow \text{CH}_2=\text{CH}_2$
77.
Physics
a transformer that its number of turns in primary coil is 200 turns, and 4000turns in secondary coil. if it was supplied with a potential (or effective) difference of 6V calculate the secondary potential difference....
78.
Math
If $2+\frac{1}{x}=4$, then the value of $x$ is:
79.
Math
If $\log_x32=5$, then the value of x equals:
80.
Math
For what value of (a) will the function $f(x)$ be continuous at $x=4$, $f(x)=\left\{\begin{matrix} \frac{x^2-16}{x-4} &,x\neq 4 \\ a &, x=4 \end{matrix}\right.$ is:
81.
Biology
Which of the following is a disaccharide?
82.
Biology
The two main groups of flowering plants based on seed type are
83.
Biology
Location of sperm maturation and storage:
84.
Biology
What contributes to the transport of substances across the cell membrane
85.
Physics
Which of the following is a vector quantity?
86.
Physics
A bulb has an illuminance of 2lx, what is it's luminous flux in a distance of 5m?
87.
Biology
Substances that make up the CDK cycloenzyme group that control the stages of the cell cycle
88.
Chemistry
A neutral solution contains two equal concentrations of hydrogen ions and ....
90.
Chemistry
Which of the following sublevels is not in an atom?
91.
Math
The positive geometric mean of the two numbers 12, 3 equals:
92.
Chemistry
Elements in their standard state have a $\Delta H^{\circ}_f$ of ....
93.
Math
If $\triangle JLM \sim \triangle QST$ find the value of $x$?
94.
Physics
When an ultraviolet radiation falls on a negative charged zinc board, it ejects an electron from zinc because...
95.
Math
If the probability of the occurrence of event $A$ is 42%, then the probability of non occurring the event $A$ equals:
96.
Physics
As the velocity of fluid flow increases, the pressure exerted by that fluid....
97.
Math
Find the value of the integration $\int_{1}^{4} 2x \ dx$?
98.
Biology
Which of these groups of animals is most likely to be capable of solving complex problems?
99.
Biology
Algae are similar to plants because they have ..
100.
Physics
The speed of sound in the air depends on ....
101.
Biology
Fertilization in reptiles ...
102.
Math
Find the scalar (inner) product of the two vectors v, u if $v=$❮$-5, 1$❯$\ , \ u=$❮$3, -2$❯?
103.
Math
In the opposite figure: what is the value of x?
104.
Physics
A spring was vibrated 60 times fully in 20s, what is its frequency in Hz?
105.
Biology
An organelle that finalizes and packages proteins after they are produced in the ribosomes
106.
Math
Which of the following numbers doesn't belong to the domain of the function $f(x)=\sqrt{4-2x}$
107.
Physics
Based on the following figure: find the electric potential difference between the two plates.
108.
Biology
What is a fruit in biological terms?
109.
Math
The image of the point (-1, 3) by reflection on line $y=x$ is:
110.
Math
If $x$ varies inversely with $y$, and $x=24$ when $y=4$ then find the value of $x$ when $y=12$
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