In which region of the fallopian tube, fertilization of sperm and ovum takes place?

Darwin's finches are the example of :

Read the following paragraph and answer the given questions.
Bio-fertilisers are organisms that enrich the nutrient quality of the soil like cyanobacteria, while there are organisms that help to control plant diseases and pests. The very familiar beetle, the ladybird and dragonflies are useful to get rid of aphids and mosquitoes, respectively. An example of microbial biocontrol agents that can be introduced to control butterfly caterpillars is certain bacteria, which are available in sachets in the form of dry spores. These spores are mixed with water and sprayed onto vulnerable plants. Trichoderma species that are very common in the root ecosystem, are very effective biocontrol agents of several plant pathogens.Baculoviruses attack insects and other arthropods. Usage of these viruses is desirable when an ecological sensitive area is being treated.
Find the odd one out of the given organisms?

A medicinal plant growing in different Himalayan ranges shows different potency and concentration of the active chemical (reserpine) that the plant produces. Identify the plant:

Match List-l with List-ll

List-l (Evolutionary stages of man)	List-II (Features)
(A) Dryopethicus	(I) Brain capacity 900 cc
(B) Australopithecines	(II) Hairy and walked like gorillas
(C) Homo habilis	(III) Brain capacity 650-800 cc
(D) Homo erectus	(IV) Lived in east African grasslands

Choose the correct answer from the options given below:

Match List I with List II

List - I	List - II
(A) Both the species are benefitted	(I) Competition
(B) One of the species is benefitted but the other is harmed	(II) Parasitism
(C) One of the species is benefitted but the other is neither benefitted nor harmed	(III) Commensalism
(D) Both the species are harmed	(IV) Amensalism
	(V) Mutualism

Choose the correct answer from the options given below:

Read the paragraph and answer the question.
Broadly, genetic disorders may be grouped into two categories - Mendelian disorders and Chromosomal disorders. Mendelian disorders are mainly determined by alteration or mutation in the single gene. These disorders are transmitted to the offspring on the same lines as we have studied in the principle of inheritance. The trait may also be linked to the sex chromosome as in case of haemophilia. It is evident that this X-linked recessive trait shows transmission from carrier female of male progeny.
The disease which is transmitted to the offsprings following the principles of inheritance is :

A surface of area \( \vec{A} = 2\hat{i} - 3\hat{k} \) exists in a region of electric field \( \vec{E} = a\hat{i} + b\hat{j} \). The net flux passing through the surface is

\(\int_{-1}^1\left(x^7+x^5+x^3+x+1\right) d x\) is equal to:

In an AC circuit, the power factor :

Answer the question on the basis of passage given below :
Formaldehyde is the first member of the aldehydic series. It is present in green leaves of plants where its presence is supposed to be due to the reaction of \(CO_2\) with water in the presence of sunlight and chlorophyll. Commercially, formaldehyde is obtained by the controlled oxidation of methane in the presence of molybdenum oxide (\(MoO\)) acting as a catalyst. Formaldehyde is a constituent of a number of polymers also called resins. These are non volatile solids or semi solids which are obtained directly from certain plants and can be synthesized in the laboratory.
What is formalin ?

Ferromagnetic material in transformers should have :

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 :