Increase in population is due to:

Identify the correct sequence of events during menstrual cycle?
(A) Next cycle begins
(B) Proliferative phase
(C) Menstruation
(D) Secretory phase
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Alcohol is a depressant, which means that even small amounts of alcohol slow down the actions of parts of the brain, so alcohol lengthens the time you take to respond to a stimulus.
Different people react differently to alcohol. In some people, it increase their feelings of aggression, and releases their inhibitions so that they are more likely to be violent or commit other crimes.
An alcoholic needs to drink quite large quantities of alcohol regularly. This causes many parts of the body to be damaged, because alcohol is poisonous to cells. Probably, there are many factors which decide whether or not a person becomes alcoholic. Over a long period of time, it can cause loss of memory and confusion. One way in which the damage is done is that alcohol in the body fluids draws water out of cells by osmosis.
Withdrawal symptoms of alcohol are __________

Three cells grouped together at the micropylar end and constitute __________ in the embryo sac.

Sequence the following steps in formation of female gametophyte of flowering plants
A. Cell walls are laid down.
B. Formation of seven cells with eight nuclei.
C. Meiosis in megaspore mother cell and formation of megaspore tetrad.
D. Functional megaspore undergoes three mitotic divisions, results in formation of eight nuclei.
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Single step large mutations causing speciation are called:

Match List - I with List - II.

List - I	List - II
(A) Lamarck	(I) Natural selection
(B) Darwin	(II) Work on populations
(C) Thomas Malthus	(III) Mutation
(D) Hugo deVries	(IV) Use and disuse of organs

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Which of the following is not tetrahedral in shape?

\(\int_0^a \frac{\sqrt{x}}{\sqrt{x}+\sqrt{a-x}} d x\) is equal to

Three charges Q, +2q and +2q are placed at the vertices of an equilateral triangle. If the net electrostatic potential energy of the system is zero, then Q is equal to

Collision theory postulates are :
A. Reactant molecules collide with each other.
B. The collisions must be of sufficient kinetic energy.
C. The collision in molecules with proper orientation.
D. Rate of reaction does not depend on temperature.
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A pipe can fill a tank in 2 hours. Because of a leak in the tank, the pipe takes 2 hours 40 minutes to fill the tank. The time the leakage takes to empty the full tank is :

Arrange the following complexes in increasing order of number of moles of silver chloride precipitated
when one mole of each is reacted with excess of silver nitrate.
(A) \(\left[ Co \left( NH _3\right)_4 Cl _2\right] Cl\)
(B) \(\left[ Co \left( NH _3\right)_5 Cl \right] Cl _2\)
(C) \(\left[ Co \left( NH _3\right)_3 Cl _3\right]\)
(D) \(\left[ Co \left( NH _3\right)_6\right] Cl _3\)
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