Which one among the following contraceptive, inhibits ovulation and implantation of female reproductive system?

Which is not an example of broadly utilitarian concept of biodiversity conservation?

Match List I with List II

LIST I	LIST II
A. Funnel-shaped part of oviduct, closer to the ovary	I. Isthmus
B. The last part of the oviduct	II. Ampulla
C. Finger-like projections at the edges of funnel shaped part of the oviduct	III. Infundibulum
D. Broad and middle part of the oviduct	IV. Fimbriae

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Which one of the following expressions is used for comparing productivity of different ecosystems?

Which of the followings belong to false fruit category?
(A) Apple
(B) Cashew
(C) Strawberry
(D) Orange
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Arrange the given steps involved in gel electrophoresis used for separation of DNA fragments?
(A) Exposure to UV light
(B) Staining with ethidium bromide
(C) Movement of DNA fragments towards anode
(D) Elution
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Read the following paragraph and answer the given questions.
Cancer detection is based on biopsy and histopathological studies. Techniques like radiography (use of X-rays), CT (computed tomography) and MRI (magnetic resonance imaging) are very useful to detect cancers of the internal organs. Do you know why mother's milk is considered very essential for the new-born infant? The yellowish fluid colostrum secreted by mother during the initial days of lactation has abundant antibodies (IgA) to protect the infant. Different species of Plasmodium (P. vivax, P. malaria and P. falciparum) are responsible for different types of malaria. Of these, malignant malaria caused by Plasmodium falciparum is the most serious one and can even be fatal. The exaggerated response of the immune system to certain antigens present in the environment is called allergy. The use of drugs like anti-histamine, adrenalin and steroids quickly reduce the symptoms of allergy. Drugs like barbiturates, amphetamines, benzodiazepines, and other similar drugs, that are normally used as medicines to help patients cope with mental illnesses like depression and insomnia, are often abused. Morphine is a very effective sedative and painkiller, and is very useful in patients who have undergone surgery.
Malignant malaria is caused by -

Select the factor that does not disturb the genetic equilibrium :

In a country, at any time, the population has the same number of youngs and mature ones. What type of growth does it reflect?

Choose the correct phase relationship between the current and the applied voltage in an a.c. circuit.
(A) In a pure resistive circuit, the current is in phase with the applied voltage.
(B) In a pure inductive circuit, the current lags behind the voltage by a phase angle of 90°.
(C) In a pure inductive circuit, the current leads the voltage by a phase angle of 90°.
(D) In a pure resistive circuit, the current is not in phase with the applied voltage.
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Which of the following are similarities between the sinking fund and the savings account?
(A) The sinking fund and the savings account are both financial tools.
(B) Both can be used in any emergency.
(C) They both involve setting aside an amount of money for the future.
(D) Both are long-term accounts which can be closed any time.
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Read the passage carefully and answer the Questions
A homogeneous mixture of two or more than two components has uniform composition and properties. The binary solutions have two components, which may be solid, liquid or gas. The resultant solution has a larger amount of solvent and a smaller amount of solute. The amount of solute in a given amount of solvent decides the concentration of the resulting solution. The concentration can be expressed in various ways, like molarity, molality, normality and mole fraction. The molality of a 1 liter aqueous solution of \(93 \backslash \% H _2 SO _4\) (mass/volume) is:
(Given: density of the solution \(=1.84 g mL ^{-1}\), molar mass of \(\left.H _2 SO _4=98 g mol ^{-1}\right)\)

If the system of equation
\(x-y+z=4\)
\(x-2 y-2 z=9\)
\(2 x+y+\lambda z=1\)
has a unique solution, then