Which of the following is a man-made ecosystem?

Match List-I with List-II

List-I (Strategies of an organism)	List-II (Example)
(A) Organisms breed only once in their lifetime	(I) Desert lizard
(B) Organisms breed many times during their lifetime	(II) Oysters
(C) Organisms produce large number of small sized offspring	(III) Salmon fish and bamboo
(D) Some organisms show behavioral responses with variation in their environment	(IV) Birds and mammals

Choose the correct answer from the options given below:

The direction of transport of sperm in human is-
(A). Vas deferens
(B). Vasa efferentia
(C). Epididymis
(D). Ejaculatory duct
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Removal of vas deferens surgically is called:

The blastocyst becomes embedded in the endometrium of the uterus. This is called :

Amoebic dysentery is caused by:

Arrange the following historical events in the history of life in chronological order?
(A) Natural selection
(B) Self-replicating molecules
(C) Eukaryotic cell
(D) Prokaryotic cell
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Arrange the following electromagnetic waves in the increasing order of their energy:
(A) infrared rays
(B) AM radio waves
(C) y - rays
(D) Microwaves
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Addition of HCN to carbonyl group results in formation of:

Antipyretic drugs prevent platelet coagulation, apart from reducing fever. Because of this action, antipyretic aspirin is also used:

Answer the question on the basis of passage given below :
There are three kinds of amines which are primary, secondary and tertiary amines. These amines may have alkyl group or aryl group or both alkyl and aryl groups. These amines can be distinguished from one another by various chemical tests.
Which of the following amines when treated with chloroform and KOH give foul smelling substance. A is:
A. a primary amine
B. secondary amine
C. tertiary amine
D. aniline

Read the given passage carefully and answer the questions
Antibiotics have greatly improved our capacity to treat deadly diseases such as plague, whooping cough (kali khansi), diphtheria (gal ghotu) and leprosy (kusht rog), which used to kill millions all over the globe.
Streptokinase produced by the bacterium Streptococcus and modified by genetic engineering is used as a 'clot buster' for removing clots from the blood vessels of patients who have undergone myocardial infarction leading to heart attack. Microbes are diverse-protozoa, bacteria, fungi and microscopic animal and plant viruses, viroids and also prions that are proteinacious infectious agents. The puffed-up appearance of dough is due to the production of CO₂ gas. Similarly the dough, which is used for making bread, is fermented using baker's yeast (Saccharomyces cerevisiae). Primary sewage treatment basically involve physical removal of particles - large and small from the sewage through filtration and sedimentation. These are removed in stages; initially, floating debris is removed by sequential filtration. Then the grit (soil and small pebbles) are removed by sedimentation. All solids that settle form the primary sludge, and the supernatant forms the effluent. The effluent from the primary settling tank is taken for secondary treatment. The primary effluent is passed into large aeration tanks, where it is constantly agitated mechanically and air is pumped into it. This allows vigorous growth of useful aerobic microbes into flocs. While growing, these microbes consume the major part of the organic matter in the effluent.
Primary sludge treatment involves -

What is the decreasing order of field strength of given ligands?
(A) S^2-
(B) Ethylenediamine
(C) NCS^-
(D) CN^-
Choose the correct answer from the options given below :