Recent questions tagged class11

By R.H. Whittaker's Five Kingdom Classification Assertion (A) : Kingdom Protista has brought together Chlamydomonas, Chlorella (earlier placed in Algae within Plants and both having cell walls) with Paramoecium and Amoeba (which were earlier placed in the animal kingdom which lack cell wall). Reason (R) : It has put together organisms which, in earlier classifications, were placed in different kingdoms. Regarding (A) and (R)

asked Jan 3, 2014 by pady_1

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Which of the following is more general in characters as compared to class

asked Jan 3, 2014 by pady_1

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Which of the following is less general in characters as compared to genus

asked Jan 3, 2014 by pady_1

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Assertion (A) : Monera and Protista both are of cellular in body organisation; Monera is Eukaryotic and Protista is Prokaryotic Reason (R) : Eukaryotic organisms have nuclear membrane and Prokaryotic organisms do not have nuclear membrane Regarding (A) and (R)

asked Jan 3, 2014 by pady_1

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The taxonomic studies of various species of plants and animals are useful in:

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Regarding Keys choose the incorrect one:

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Regarding 1 and 2 <br> 1. The keys are based on the contrasting characters generally in a pair called compliment. <br> 2. Each statement in the key is called a cue.

asked Jan 3, 2014 by pady_1

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Regarding 1 and 2 1. The keys are based on the contrasting characters generally in a pair called compliment. 2. Each statement in the key is called a lead.

asked Jan 3, 2014 by pady_1

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Zoological Parks are the places:

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Indian Botanical Garden and National Botanical Research Institute are located at

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Regarding Assertion (A) and its Reason (R) :- <br> A: Fishes, amphibians, reptiles, birds are placed in Phylum Chordata but not mammals . <br> R: They are placed in a single phylum based on the common features like presence of notochord and dorsal hollow neural system

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Identify the wrong statement:

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Pick the Incorrect statement:

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1. All categories together constitute the taxonomic category. 2. Each category represents a rank and is commonly termed as taxon

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Regarding systematics which among the following is incorrect

asked Jan 3, 2014 by pady_1

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Some universal rules of nomenclature are as follows: ( Identify the correct one)

asked Jan 3, 2014 by pady_1

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Say True or False: 1. Properties of tissues are present in the constituent cells 2. Properties of cellular organelles are present in the molecular constituents of the organelle

asked Jan 3, 2014 by pady_1

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ICN, The International Code of Nomenclature for algae, fungi, and plants (ICN) was formerly called ICBN. What does ICBN stand for?

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4. (1) The sum total of all chemical reactions occurring in our body is metabolism (2) Metabolic reactions cannot be demonstrated outside the body in cell free systems Regarding 1 and 2:

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3. Assertion (A): Growth & Reproduction are mutually exclusive events Reason (R): Growth is increase in body mass & Reproduction is production of progeny possessing features more or less similar to those of parents Regarding the statements A and R:

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1. Distinctive Characteristics exhibited by organisms are:

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Find the value of n such that $\frac{5^{(n+1)}+17^{(n+1)}}{5^n+17^n}$ is the AM of 5 and 17

asked Jan 3, 2014 by yamini.v

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If $P(x,y,z)$ is a point on the line segment joining $Q(2,2,4)\:\:and\:\:R(3,5,6)$ such that the projections of $\overrightarrow {OP}$ on the coordinate axes are $\large\frac{13}{5},\frac{19}{5},\frac{26}{5}$ respectively, then $P$ divides $QR$ in the ratio ?

asked Jan 3, 2014 by rvidyagovindarajan_1

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Given that $a\;\xi\;b$ are not equal , find the value of n so that $\frac{a^{n+1}+b^{n+1}}{a^n+b^n}$ is the GM of $a\;\xi\;b$

asked Jan 3, 2014 by yamini.v

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If n arithmetic means are interested between $0$ and $32$ such that the $2^{nd}$ mean is one-seventh of the $(n-1)^{th}$ mean, find the value of $n$.

asked Jan 3, 2014 by yamini.v

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Let $A$ and $B$ be two events, such that: $ P(\overline{A \cup B} ) $$= \large\frac{1}{6}\:$,$\;\; P( A \cap B ) $$= \large\frac{1}{4} $,$\;$and $\;\;P(\overline A)$$=\large\frac{1}{4}$ where $\overline A$ stands for complement of event $A$. Then events $A$ and $B$ are

asked Jan 3, 2014 by thanvigandhi_1

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Insert k arithmetic means between 1 and $k^2$ . what is the resulting series?

asked Jan 3, 2014 by yamini.v

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In the series 2,10,50 ------ the number of terms required to make a sum of 7812 is

asked Jan 3, 2014 by yamini.v

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Which term of the series $\frac{16}{9}$, $\frac{4}{3}$, $1$, $\frac{3}{4}$------is $\frac{243}{1024}$

asked Jan 3, 2014 by yamini.v

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A and B throw a die. The probability that A's throw is not greater than B's is :

asked Jan 3, 2014 by thanvigandhi_1

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The angles of a quadrilateral are in AP whose common difference is $10^0$. Find the angles.

asked Jan 3, 2014 by yamini.v

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Divide 44 into 4 parts following an AP such that the ratio of the product of extremes to the product of the means is 5:14.

asked Jan 3, 2014 by yamini.v

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If the $3^{rd}$ term of a GP is 18 and the $10^{th}$ term is 39366 , find the $7^{th}$ term of the GP.

asked Jan 3, 2014 by yamini.v

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If $P$ is a point in space such that $OP=12$ and $\overrightarrow {OP} $ is inclined with angle $45^{\circ} $ with $OX$ and $60^{\circ}$ with $OY$ then the coordinates of $P$ is ?

asked Jan 3, 2014 by rvidyagovindarajan_1

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Find the sum of the series 1.4 + 2.5 + 3.6----- upto 20 terms.

asked Jan 3, 2014 by yamini.v

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If $P(3,2,-4),\:Q(5,4,-6)\:and\:R(9,8,-10)$ are collinear,then $R$ divides $PQ$ in ratio?

asked Jan 3, 2014 by rvidyagovindarajan_1

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Find the sum of the series $3^2$ + $5^2$ + $7^2$ +-----upto 10 terms

asked Jan 3, 2014 by yamini.v

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If $\large\frac{1}{x+y}$, $\large\frac{1}{xy}$, $\large\frac{1}{y+z}$ are in AP, $x, y, z$ are in

asked Jan 3, 2014 by yamini.v

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The sum of three numbers in GP is 26. If 2,2,-6 are added to them respectively they form as.n AP . Find the number

asked Jan 3, 2014 by yamini.v

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The product of $3$ numbers in $GP$ is $1000$. If $6$ and $7$ are added to the $2^{nd}$ and $3^{rd}$ terms respectively, the terms form an $AP.$ Find the $GP$.

asked Jan 3, 2014 by yamini.v

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Find the sum of n terms of the series 2.4 + 5.6 + 8.8 + 11.10 +---------

asked Jan 3, 2014 by yamini.v

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Find the sum of n terms of the series 1.5+3.8+5.11+---------------n

asked Jan 3, 2014 by yamini.v

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Find the sum of n terms of the series 2.4+5.7+8.10+------------

asked Jan 3, 2014 by yamini.v

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If a, b, c, d are in GP, what is the progression of $a^n + b^n$, $b^n + c^n$, $c^n + d^n$.

asked Jan 3, 2014 by yamini.v

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If a, b, c are in GP, find the value of $a^2b^2c^2(\large\frac{1}{a^3}+\large\frac{1}{b^3}+\large\frac{1}{c^3})$

asked Jan 3, 2014 by yamini.v

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Find 3 Geometric means between $\large\frac{1}{3}$ and 432.

asked Jan 3, 2014 by yamini.v

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Insert two geometric means between 4 and 256 .

asked Jan 3, 2014 by yamini.v

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If $a, b, c$----$l$ is a GP, find the sum of the series.

asked Jan 3, 2014 by yamini.v

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A buys 3 tickets of a lottery in which total number of tickets is 12 out of which 3 carry prizes on them. A's chance of getting a prize is ;

asked Jan 2, 2014 by thanvigandhi_1

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If A,B,C are three events with $P(C)=0$ then $ P(A \cup B \cup C )=$

asked Jan 2, 2014 by thanvigandhi_1

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