Arrange the following features related to decomposition cycle in a terrestrial ecosystem in correct sequence?
(A) Fallen leaves eaten by insects and animals
(B) Trees grow in the soil
(C) Some nutrients leach into the soil
(D) Decomposition by earthworm and bacteria etc.
Choose the correct answer from the options given below:

Arrange the given steps for sewage treatment plant in correct sequence?
(A) Formation of flocs
(B) Pumping of sludge into anaerobic sludge digester
(C) Filtration and sedimentation
(D) Reduction in BOD by biological treatment
Choose the correct answer from the options given below:

Arrange the given structures starting from chalazal end to micropylar end in a mature embryo sac?
(A) Central cell
(B) Antipodals
(C) Synergids
(D) Egg
Choose the correct answer from the options given below:

The first human-like being the hominid was called as -

Read the passage carefully and answer the questions based on the passage:
Pollen pistil interaction involves all events from the landing of pollen grains on the stigma until the pollen tube enters the embryo sac (when the pollen is compatible). When a pollen tube grows through the style and enters into the ovules, it finally discharges two male gametes in one of the synergids. Syngamy and triple fusion are two fusion events occur in angiosperms. Thus, angiosperms exhibit double fertilization. The products of these fusions are the diploid zygote and triploid primary endosperm nucleus. Zygote develops into embryo and primary endosperm cell forms the endosperm tissue. The developing embryo passes through different stages before maturation.
Formation of diploid zygote is a result of:

The complimentary DNA sequence of the DNA strand 5'-GAATTC-3' would be:

Match List - I with List - II.

LIST I	LIST II
(A) Lippes loop	(1) Barrier
(B) Vaults	(II) Hormone releasing device
(C) Periodic abstinence	(III) Non medicated IUDs
(D) Progestasert	(IV) Natural method

Choose the correct answer from the options given below:

Match List - I with List - II.

List - I	List - II
(A) Aspergillus niger	(I) Butyric acid
(B) Saccharomyces cerevisiae	(II) Citric acid
(C) Clostridium butylicum	(III) Lactic acid
(D) Lactobacillus	(IV) Ethanol

Choose the correct answer from the options given below :

Match List-I with List-II

List-I	List-II
(A) The vectors \(\lambda \hat{i}+\hat{j}+2 \hat{k}\) and \(\hat{i}+\lambda \hat{j}+\hat{k}\) are perpendicular if \(\lambda\) is equal to	(I) 1
(B) The vectors \(3 \hat{i}+6 \hat{j}-\hat{k}\) and \(2 \hat{i}+\lambda \hat{j}-2 \hat{k}\) are collinear if \(\lambda\) is equal to	(II) -1
(C) The number of vectors of unit-length which are perpendicular to both the vectors \(\vec{a}=\hat{i}+\hat{j}+2 \hat{k}\) and \(\vec{b}=3 \hat{i}-\hat{j}+5 \hat{k}\) is	(III) \(2 / 3\)
(D) If \(|\vec{a}|=1\) and \(\vec{a}+\vec{b}=\overrightarrow{0}\), then \(|\vec{b}|\) is equal to	(IV) 2

Choose the correct answer from the options given below :

For fixed radii of curvature of a lens, power is proportional to :

Unit vectors perpendicular to the plane of vectors \(\vec{a}=\hat{i}-\hat{j}-3 \hat{k}, \vec{b}=\hat{i}+3 \hat{j}-\hat{k}\) are:

If the two particles of the same mass and same charge are accelerated with a potential difference of 120 V and 480 V respectively, the ratio of de Broglie's wavelengths associated with the two particles respectively is

Read the following passage carefully and answer the given questions.
The B-lymphocytes produce an army of proteins in response to pathogens. Each antibody molecule has four peptide chains, two small called light chains and two longer called heavy chains. Virus-infected cells secrete proteins called interferons which protect non-infected cells from further viral infection. Symptoms of allergic reactions include sneezing, watery eyes, running nose and difficulty in breathing. The use of drugs like anti-histamine, adrenalin and steroids quickly reduce the symptoms of allergy. Lymphoid organs are the organs where origin and/or maturation and proliferation of lymphocytes occur. The primary lymphoid organs are bone marrow and thymus. After maturation the lymphocytes migrate to secondary lymphoid organs like spleen, lymph nodes, tonsils, Peyer's patches of small intestine and appendix. Heroin commonly called smack is chemically diacetylmorphine which is a white, odourless, bitter crystalline compound. This is obtained by acetylation of morphine, which is extracted from the latex of poppy plant Papaver somniferum.
Which one of the followings drug does not reduce the symptoms of allergy quickly?