An inverted pyramid of biomass can be found in which of the following ecosystem?

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

Cells responsible for the synthesis and secretion of testicular hormones are:

Analogous structures like flippers of Penguins and Dolphins are formed as a result of:

What percentage of the earth's land area is covered by all hotspots put together?

Observe the given figures and answer the question

The conditions created by Miller in his experiment were:

Identify the species which is not invasive:

Arrange the following alcohols in decreasing order of acidity :

Choose the correct answer from the options given below :

Match List - I with List - II.

List - I	List - II
(A) Down’s syndrome	(I) Inborn error of metabolism
(B) Klinefelter’s syndrome	(II) Absence of one of the X-chromosome
(C) Turner’s syndrome	(III) Presence of an additional copy of X-chromosome
(D) Phenylketonuria	(IV) Presence of an additional copy of chromosome number-21

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If the events A and B are independent, then which of the following statements are true?
(A) \(P\left(A^{\prime} \cap B\right)=[1-P(A)] P(B)\)
(B) A and B are mutually exclusive
(C) P(A) = P(B)
(D) \(P\left(A^{\prime} \cap B^{\prime}\right)=[1-P(A)][1-P(B)]\)
Choose the correct answer from the options given below:

Read the passage carefully and answer the questions
Sodium dichromate \(Na _2 Cr _2 O _7\) and Potassium dichromate \(K _2 Cr _2 O _7\) are strong oxidizing agents; in acidic solution, its oxidising action can be represented as follows :
\(Cr _2 O _7^{2-}+14 H ^{+}+6 e^{-} \rightarrow 2 Cr ^{3+}+7 H _2 O \left( E ^{\circ}=1.33 V\right)\)
The chromates and dichromates are interconvertible in aqueous solution depending upon pH of the solution.
The chromate ion is tetrahedral whereas the dichromate ion consists of two tetrahedra sharing one corner with \(Cr - O - Cr\) bond angle of \(126^{\circ}\)
Potassium permanganate is prepared by fusion of \(MnO _2\) with an alkali metal hydroxide and an oxidising agent like \(KNO _3\).
This produces the dark green \(K _2 MnO _4\) which disproportionates in a neutral or acidic solution to give permanganate. It is a strong oxidizing agent. Hydrogen ion concentration of the solution plays
an important part in the reduction of permanganate to manganate, manganese dioxide and manganese(II) salt.
Potassium permanganate forms dark purple (almost black) crystals which are isostructural with those of \(KClO _4\).
The salt is not very soluble in water \((6.4 g / 100 g\) of water at 293 K ), but when heated it decomposes at 513 K .
Alkaline/neutral \(KMnO _4\) oxidizes iodide ( \(I ^{-}\)) ion to

Which of the following statements are correct?
(A) A fund which is created to accumulate money over the years to discharge a future obligation is called a sinking fund.
(B) The amount or future value of perpetuity is well-defined.
(C) The sinking fund be used in any emergency.
(D) An equated monthly installment is a fixed payment made by a borrower to a lender at a specific date every : month to clear off the loan.
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The mathematical expression that represents the Exponential growth in a population is: