Identify the incorrect statement in reference to the latitudinal gradient in biodiversity.

Observe the figure and answer the following:


What is represented by figure D?

Primary productivity does not depends upon which one of the following factors?

Which one of the following is NOT an example of commensalism?

Read the following passage carefully and answer the given questions.
Biofertilisers
Biofertilisers are organisms that enrich the nutrient quality of the soil and their main sources are bacteria, fungi and cyanobacteria. You have studied about the nodules on the roots of leguminous plants formed by the symbiotic association of Rhizobium. These bacteria can fix atmospheric nitrogen into organic forms. Other bacteria can also fix atmospheric nitrogen while free-living in the soil (examples Azospirillum and Azotobacter). Fungi are also known to form symbiotic associations with plants (mycorrhiza). Many members of the genus Glomus form mycorrhiza. Plants having such associations show other benefits also, such as resistance to root-borne pathogens, tolerance to salinity and drought, and an overall increase in plant growth and development. Cyanobacteria are autotrophic microbes widely distributed in aquatic and terrestrial environments many of which can fix atmospheric nitrogen, e.g. Anabaena, Nostoc, Oscillatoria, etc. In paddy fields, cyanobacteria serve as an important biofertiliser. Blue green algae also add organic matter in to the soil and increase its fertility. Currently, in our country, a number of biofertilisers are available commercially in the market and farmers use these regularly in their fields to replenish soil nutrients and to reduce dependence on chemical fertilisers.
In organic farming, there is -

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

Match List-l with List-II

List-l (Genetic disorder)	List-II (Characteristics)
(A) Haemophilia	(I) Mutation in HBB gene
(B) Thalassemia	(II) Sex-linked recessive disease
(C) Phenylketonuria	(III) Aneuploidy
(D) Klinefelter's syndrome	(IV) Mental retardation and reduced hair and skin pigmentation

Choose the correct answer from the options given below:

The brain size of the Neanderthal man was:

Read the passage carefully and answer the following questions
Aldehydes, carboxylic acids and ketones are widespread in the animal and plant kingdoms. They play a pivotal role in various biochemical processes of life. Their presence in nature adds fragrance and flavor. These compounds are widely used in food products, pharmaceuticals, paints, resins and other important product industries. These compounds are prepared by various laboratory methods, which mainly include oxidation, formylation, acylation and reduction. Due to the polar nature of the carbonyl group in aldehydes and ketones, they can exhibit different reactions like nucleophilic addition. They do exhibit redox and various condensation reactions which lead to the formation of various important compounds. On the other hand, the carboxylic acids are mainly prepared by oxidation and hydrolysis of different compounds. The carboxylic acid consists of a carbonyl group and the hydroxy group (attached to the carbonyl carbon atom). This makes it possible for the carboxylic acid to participate in various chemical reactions which involve cleavage of the C-OH bond and the O-H bond along with the reactions involving the complete - COOH group.
The IUPAC name of following compound is \(OHC-C_6H_4-CHO-p\)

According to Bohr's theory, the angular momentum of an electron revolving in the second orbit of the hydrogen atom will be:

Which of the following statements, with reference to a solution, are correct?
(A) The osmotic pressure of the solution is proportional to the molarity of the solute.
(B) The elevation of the boiling point (\(\Delta T_b\)) is directly proportional to the molal concentration of the solute in a solution.
(C) The unit of \(K_b\) is \(\mathrm{K} \mathrm{kg}^{-1} \mathrm{~mol}^{-1}\).
(D) \(\Delta T_b=T_b^0-T_b\).
Choose the correct answer from the options given below:

Let \(x\) denote the number of heads in a simultaneous toss of three coins, then \(P(0 < x \leq 3)\)

The statement which is not true -
(A) Boiling point of ethanol is greater than that of ethoxyethane due to H -bonding
(B) Ethoxyethane is soluble in water due to H-bonding
(C) Ethanol is soluble in water due to H -bonding
(D) Ethoxyethane has nearly same boiling point as that of butanol
Choose the correct answer from the options given below :