Which of the following contribute to increase in population density?

Match List I with List II.

LIST I	LIST II
A. Epidermophyton sp.	I. Typhoid
B. Haemophilus influenzae	II. Elephantiasis
C. Wuchereria malayi	III. Ringworm
D. Salmonella sp.	IV. Pneumonia

Choose the correct answer from the options given below:

Thalassemia is:

In the species-area relationship equation, log S = log C + Z log A, 'Z' denotes -

Which one of the followings cells are attacked by HIV?

Read the following paragraph carefully and answer the given questions.
Certain types of leukocytes (WBC) of our body like polymorpho-nuclear leukocytes (PMNL-neutrophils) and monocytes and natural killer (type of lymphocytes) in the blood as well as macrophages in tissues can phagocytose and destroy microbes. For determining the cause of allergy, the patient is exposed to or injected with very small doses of possible allergens, and the reactions studied. The use of drugs like anti-histamine, adrenalin and steroids quickly reduce the symptoms of allergy. Heroin, commonly called smack is chemically diacetylmorphine which is a white, odourless, bitter crystalline compound. This is obtained by acetylation of morphine. 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. 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.
Heroin, commonly called smack is chemically _________ which is a white, odourless, bitter crystalline compound.

Read the following passage carefully and answer the given questions.
Productivity in the Ecosystem
The flow of energy through a terrestrial ecosystem starts with the harnessing of sunlight by autotrophs. The radiant energy is converted by photosynthesis to organic compounds is known as productivity. The productivity is expressed in units of energy per unit of area per unit time. The amount of organic matter present at any given time is biomass. The productivity of any ecosystem is affected by many parameters like weather conditions, nutrient availability etc. The productivity of any ecosystem does vary seasonally and yearly.
The unit for expressing productivity is -

Identify the molecular diagnostic technique from the following:
(A) Enzyme Linked Immuno Sorbent Assay
(B) Polymerase Chain Reaction
(C) Cloning
(D) Recombinant DNA Technology
Choose the correct answer from the options given below :

A beam of electron is used in Young's double slits experiment. The slit width is d . When velocity of electron is increased, then :

In a typical microsporangium, the function of tapetum is -

If the lines \(\frac{x-1}{-3} = \frac{y-2}{2\lambda} = \frac{z-3}{2}\) and \(\frac{x-1}{3\lambda} = \frac{y-1}{2} = \frac{z-6}{-5}\) are perpendicular. Then the value of \(\lambda\) is:

A motorcycle has a scrap value of Rs. 22,500 after 15 years of its purchase.
If the annual depreciation charge is Rs. 8,500, then the original cost by linear method is :

The value of which of the following integrals is zero?
(A) \(\int_0^1 x d x\)
(B) \(\int_{-1}^1 x d x\)
(C) \(\int_{-1}^1 x^2 d x\)
(D) \(\int_0^1 \log \left(\frac{x}{1-x}\right) d x\)
Choose the correct answer from the options given below: