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501.

Homeostasis isA. a tendency to change with change in environmentB. tendency to resist internal changesC. disturbance in regulatory controlsD. plant and animal extracts used in ho- meopathy

Answer» Correct Answer - B
502.

Cells regulate their activity throughA. flow of materialB. flow of energyC. flow or informationD. flow of both energy and information

Answer» Correct Answer - D
503.

The garden famous for the great Banyan tree is under control ofA. ZSIB. Calcutta UniversityC. WWFD. BSI

Answer» Correct Answer - D
504.

The label of a herbarium sheet does not carry information onA. date of collectionB. name of collectorC. local namesD. height of the plant

Answer» Correct Answer - D
(d) Herbarium is a collection of plants that usually have been dried, presse, preserved plant on sheets and are arranged in accordance with any accepted system of classification for future reference and study. It does not have information on height of the plant.
505.

study the four statements (A-D) given below and select the two correct ones out of them (A) Definition of biological soecies was given by Ernst mayr (B) photoperiod does not affect reproduction in plants © Binomial nomenclature system was given by Ernst Whittaker (D) In unicellular organisms, reproduction is synonymous with growth The two correct statments areA. a and bB. b and cC. c and dD. a and d

Answer» Correct Answer - D
506.

study the four statements (A-D) given below and select the two correct ones out of them (A) Definition of biological soecies was given by Ernst mayr (B) photoperiod does not affect reproduction in plants © Binomial nomenclature system was given by Ernst Whittaker (D) In unicellular organisms, reproduction is synonymous with growth The two correct statments areA. a and dB. a and bC. b and cD. c and d

Answer» Correct Answer - A
507.

Engler and pranti published a phylognetic system in mongraphA. Die Naturlichen Plfanzen FamilienB. Historie plantarumC. Species plantarumD. Origin of species

Answer» Correct Answer - a
508.

study the four statements (A-D) given below and select the two correct ones out of them (A) Definition of biological soecies was given by Ernst mayr (B) photoperiod does not affect reproduction in plants © Binomial nomenclature system was given by Ernst Whittaker (D) In unicellular organisms, reproduction is synonymous with growth The two correct statments areA. II and IIIB. III and IVC. I and IVD. I and II

Answer» Correct Answer - C
(c) Statements I and IV are correct. The correct form of II and III are as follows: (II) Photoperiod does affect the reproduction in plants. (III) Binomial nomenclature was given by Carolus Linnaeus.
509.

What is the name of the book written by AristotleA. Historire AnimaliumB. Historie NaturelleC. Systema NaturaeD. Philosophic Zologique

Answer» Correct Answer - a
510.

Who developed the "key" for identificaton of animalsA. John rayB. GoetheC. Geoges CuvierD. Thepharstus

Answer» Correct Answer - a
511.

taxonomic hiearachy refers toA. Stepwise arrangement of all categories for classification of plants and animalsB. A group of senior taxonomists who decide the nomenclature of plants and animalsC. A list of botanists or zoologists who have worked on taxonomy of a species or groupD. Classification of a species based on fossil record

Answer» Correct Answer - a
512.

The basis of life is :A. nucleic acidsB. proteinsC. nucleoproteinsD. amino acids

Answer» Correct Answer - A
Nucleic acids (DNA and RNA) consisting carbon, hydrogen, oxygen, nitrogen and phosphorus are capable of replicating on their own therefore, considered as basis of life.
513.

Which taxonomical aid contain information on any one taxon?A. CataloguesB. ManualsC. Floral charactersD. Monograph

Answer» Correct Answer - D
Monograph contain information on any one taxon.
514.

Which one of the following shows, the hierarchial arrangement of taxonomic categories of plants in descending order?

Answer» Correct Answer - D
Classification involves hierarchy of steps in which each step represents a rank or category. Since, the category is a part of overall taxonomic arrangement. It is called as the taxonomic category and all categories together constitute the taxonomic hierarchy. The correct hierarchial arrangement of taxonomic category of plants in descending order is
Kingdom `to` Division `to` Class `to` Order `to` Family `to` Genus `to` Species
515.

The category that includes related order is calledA. FamiliesB. PhylumC. ClassD. Kingdom

Answer» Correct Answer - C
516.

Museum have the collection ofA. Insect specimensB. Larger animal specimensC. Skeleton of animalsD. All of the above

Answer» Correct Answer - D
Museum have the collection of insects specimens.
Larger animal speciemens and skeleton of animals.
517.

Assertion : Cats and dogs have some similarities. Reason : Cats and dogs belong to the same Family Canidae.A. If both assertion and reason are true and reason is the correct explanation of assertion.B. If both assertion and reason are true but reason is not correct explanation of assertion.C. If assertion is true but reason is false.D. If both assertion and reason are false.

Answer» Correct Answer - C
Family is a group of related genera with still less number of similarities as compared to genus and species e.g., a cat and a dog, have some similarities and some differences as well. They are separated into two different families-Felidae and Canidae, respectively.
518.

Fill in the blanks : (i) The scientific ordering of organisms in a hierarchial series of groups on the basis of their morphological, evolutionary and other relationships is called............... classification. (ii) The system of classifying the animals and plants from the point of view of their utility (value) to man is called...... .... classification. (iii) ............ classification is based on one or a few superficial resemblances rather than on natural or evolutionary relationships. It was introduced by ................ . (iv) ............ classification reflects the evolutionary relationships of organisms. (v) Present scientific method of naming of organisms is called ............... It was introduced by ................. . ( vi) ............. is the branch of science that deals with the framing of laws and principles of classifying the organisms on the basis of their evolutionary relationships. ( vii) A natural ................... refers to a group of similar, genetically related organisms having certain characters distinct from those of other groups. (viii) The various grouping levels or ranks in classification are known as ............... . (ix) The term ................. refers to a set of alternate characters in such a manner that helps in the identification of plants and animals by selecting and eliminating the characters according to their presence or absence in the organism under study. (x) A. .............. : at present is a place where plants frQm various groups are grown fur scientific study, conservation, public education, aesthetics and recreation. (xi) A .......... .is a collection of pressed, dried and preserved plants mounted on ............ , properly labelled, systematically arranged and available for reference or study (xii) Various tools for collection and preservation of plants include cutters, digger, ............. , plant press and............ .

Answer» (i) Biological (ii) Practical (iii) Artificial , Pliny the elder (28-79 A.O.) (iv) Phylogenetic (v) Binomial nomenclature , Carolus Linnaeus (vi) Taxonomy (vii) Taxon (viii) Categories {ix) Keys (x) Botawcal garden (xi) Herbarium, paper sheets (xii) vasculum, herbarium sheet.
519.

Larger animals like birds and mammals are usually stuffed and preserved inA. HerbariumB. zooC. Zoological parksD. Museum

Answer» Correct Answer - D
Larger animals like birds and mammals are usually stuffed ad preserved in museum.
520.

Which of the following shows extrinsic growth?A. Snow mountainB. BacteriaC. EuglenaD. Spirogyra

Answer» Correct Answer - A
Snow mountain is non-living and show reversible growth
521.

All living organisms are linked to one another becauseA. They show common genetic material but to varying degreeB. They have common genetic material of the same typeC. All have common cellular organisationD. all of the above

Answer» Correct Answer - A
All living orgnisms are linked to one another becausethey show common genetic material but to varying degree.
522.

Growth in living organisms occurs byA. Division of cellsB. Increase in mass of the living structureC. Accumulation of material by external agencyD. Both (1) & (2)

Answer» Correct Answer - D
Accumulation of materials by external agency causes extrinsic
523.

Rice, cereals, monocots and plants representA. Different taxa at different levelB. Same taxa of different categoryC. Different category of same taxaD. Same category for different taxa

Answer» Correct Answer - A
524.

Name the 3 fields of systematics.

Answer» Nomenclature, classification and taxonomy.
525.

Scientific names were first standardized throughA. ICBNB. ICZNC. BSID. ZSI

Answer» Correct Answer - A
526.

Assertion: Synonyms are the most important of all rules of ICBN. Reason: Out of the two or more scientific names given to the organism, the oldest name is recognized as valid name and other names as synonyms

Answer» Correct Answer - 1
527.

What is a botanical garden ?A. It is essentially a collection of living plants maintained for both pure and applied studiesB. It is essentially a collection of plants onlyC. It is essentially the collection of rare and fossil plantsD. It is for research work

Answer» Correct Answer - A
528.

The places where collection of dried, pressed plant specimens mounted on paper or placed in liquid preservative are kept sys- tematicallyA. HerbariaB. MuseumC. Botanical gardenD. Zoo

Answer» Correct Answer - A
529.

The places where collection of dried, pressed plant specimens mounted on paper or placed in liquid preservative are kept systematicallyA. HerbariaB. MuseumC. Botanical gardenD. Zoo

Answer» Correct Answer - A
530.

Mathose, lactose and sucrose areA. DisaccharidesB. TrisaccharidesC. MonosaccharidesD. Polysaccharides

Answer» Correct Answer - a
531.

which of the following is produced only by plantsA. StarchB. GlycogenC. CholesterolD. Triglycerides

Answer» Correct Answer - a
532.

Which one of the following sequnces is trueA. Obsevations , problem defining , Hyporhesis, experimentB. Experiment, Hypothesis , problem defining,experimentC. Obsevation hypothesis problem defining , experimentD. problem deifing,observation, hypothesis , experiment

Answer» Correct Answer - a
533.

Lipids are generallyA. A high energy sourceB. HydrophobicC. Composed of factty acidsD. All of the above

Answer» Correct Answer - d
534.

The basi of life (secret of life) isA. LipidB. proteinsC. Nuvleic acidD. Nucleoprotein

Answer» Correct Answer - c
535.

(i) What is meant by scientific nomenclature ? (ii) What is the advantage of using scientific names ?

Answer» (i) It is the application of scientific names to the organisms.
(ii) Each kind of organism is given a scieitific name, Scientific names are universal, being used all over the world irrespective of the language of the people, and therefore, it eliminates the likely confusion of multiple names of the same organism.
536.

Chenotaxonmy is connected withA. Classification of chemical found in plantsB. Use of phytochemical data in systermatic botanyC. Application of chemicals on herbarium sheetsD. Use of statistical methods in chemical yieldings plants

Answer» Correct Answer - b
537.

Descending arrangements of categories is calledA. ClassificationB. TaxonomyC. HierarchyD. key

Answer» Correct Answer - c
538.

Keystone species areA. Species belonging to same periodB. sepecies that determine structure of biotic communityC. Species reproducing sexuallyD. Specious recorded only in the fossil state

Answer» Correct Answer - b
539.

The herbarium specimen, based on which, a new species is described for the first time, is calledA. neotypeB. lectotypeC. paratypeD. holotype

Answer» Correct Answer - D
540.

Holotypes isA. Specimen used by author as nomenclature typeB. sepecimen referred alongwith origianal descriptionC. Duplicate of nomenclature typeD. Specimen selected from original when nomenclature type is missing

Answer» Correct Answer - a
541.

If a botanist has to nomencate a similar species. He will useA. mesotypeB. isotypeC. syntypeD. neotype

Answer» Correct Answer - B
542.

The total number of species that are known and described in ranges between.A. 1.5-1.8 millionB. 1.6-1.7 millionC. 1.7-1.8 millionD. 1.8-1.9 million

Answer» Correct Answer - C
The range of known and described species is 1.7-1.8 million.
543.

Two similar holotypes are calledA. MesotypesB. meotypesC. SyntypeD. Isotypes

Answer» Correct Answer - D
544.

If a botanist has to nomencate a similar species. He will useA. SyntypeB. IsotypeC. NeotypeD. Mesotype

Answer» Correct Answer - B
545.

Glycogen is most structuallt similar toA. GlucoseB. StarchC. MaltoseD. Triglycerides

Answer» Correct Answer - b
starch common in plant and glycogen in animals area two food storage polysaccharides. Both of them can easily be hydrolysed into their glucose monomers.
546.

First act in taxonomy isA. descriptionB. Identification and nomenclatureC. namingD. Classification

Answer» Correct Answer - B
First act in taxonomy is identification.
547.

Cause of mimicry isA. IslationB. AttackC. protectionD. Both (b)and ©

Answer» Correct Answer - d
Animal imitate other animals plants and natural objects in order to protect themselves from predators, called protective mimicry. Predatory animals mimic some natural object so that their prey get confused and is easily attacked or caught. This type of mimicry is called Agressive mimicry.
548.

Which is considered as basic unit of classification?A. PhylumB. FamilyC. SpeciesD. Kingdom

Answer» Correct Answer - C
Species is considered as basic unit of classification.
549.

which statement is correct for biomoleclesA. DNA is a polymer of ribonucleotidesB. All carbohydrates break down into glucoseC. RNA is single stranded and contain different purine base than DNAD. Sequence of amino acids determine primary structure of proteins

Answer» Correct Answer - d
the shape size strucuture and biological functions of proteins are determined by the number type and arrangment of aminoacids.
550.

A taxon isA. A group of related familiesB. A group of related speciesC. A type of living organismD. A taxonomic group of any ranking

Answer» Correct Answer - D