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4

The keys are based on contrasting characters generally in a pair called _______.

A. flora

B. couplet

C. both (a) and (b)

D. manuals

Correct Answer :

B. couplet


The keys are based on contrasting characters generally in a pair called couplet. Flora contains the actual account of habitat and distribution of plants of a given area. It provides the index to the plant species found in a particular area. Manuals are useful in providing information for identification of names of species found in an area.

Related Questions

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4

Which of the following statements regarding growth is incorrect?

A. In animals growth is seen up to a certain age.

B. Increase in body mass is considered as growth.

C. Growth by cell division occurs continuously throughout their life span in animals.

D. Increase in mass and number of individuals is the characteristics feature of animal growth.

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4

Which of the following statements (i - vi) are correct ?
(i) Growth cannot be taken as a defining property of living organism.
(ii) Dead organism does not grow.
(iii) Reproduction cannot be an all inclusive defining characteristic of living organisms.
(iv) No non-living object is capable of replicating itself.
(v) Metabolism in a test tube is non-living.
(vi) Metabolism is a defining feature of all living organisms.

A. (i) and (iii)

B. All except (v)

C. All except (iii)

D. All of these

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4

The disadvantage of using common names for species is that

A. the names may change.

B. one name does not apply universally.

C. one species may have several common names and one common name may be applied to two species.

D. all of the above

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4

Which of the following statements regarding growth is incorrect?

A. In plants, growth by cell division is seen only upto a certain stage.

B. Growth exhibited by non-living objects is by accumulation of material on the surface.

C. A multicellular organism grows by cell division.

D. Growth in in vitro culture of unicellular organisms can be observed by counting the number of cells.

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4

Match the taxonomic categories given in column I with their feature given in column II.
Column IColumn II
A. TaxonI. Basic unit of classification
B. SpeciesII. A taxonomic group of any rank
C. PhylumIII. Division is the same category in case of plants
D. GenusIV. Identified based on a number of similar characters
E. OrderV. Group of related species having more character in common with others species

A. A - V, B - II, C - IV, D - III, E - I

B. A - III, B - I, C - IV, D - II, E - V

C. A - II, B - I, C - III, D - V, E - IV

D. A - III, B - II, C - IV, D - I, E - V

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4

In multicellular organisms, _____ refers to the production of progeny possessing features more or less similar to those of parents.

A. growth

B. reproduction

C. metabolism

D. consciousness

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4

Which of the following statements is incorrect?

A. The scientific name for humans is Homo sapiens.

B. Organisms placed in the same genus are least closely related.

C. Moving from species to kingdom, more different species are included in each higher category.

D. Species that are in the same genus share very specific characteristics.

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4

Which of the following aspects is an exclusive characteristic of living things ?

A. Isolated metabolic reactions occur in vitro.

B. Increase in mass from inside only.

C. Perception of events happening in the environment and their memory.

D. Increase in mass by accumulation of material both on surface as well as internally.

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4

Which of the following factors exclusively affects reproduction in seasonal breeders, both plants and animals?

A. Water

B. Temperature

C. Photoperiod

D. All of these

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4

Match column I with column II and choose the correct option.
Column-IColumn-II
A. FamilyI. tuberosum
B. KingdomII. Polymoniales
C. OrderIII. Solanum
D. SpeciesIV. Plantae
E. GenusV. Solanaceae

A. A IV; B III; C V; D II; E I

B. A V; B IV; C II; D I; E III

C. A IV; B V; C II; D I; E III

D. A V; B III; C II; D I; E IV

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4

Match column-I with column-II and choose the correct combination from the options given below.
Column-IColumn-II
A. National BotanicalI. Carolus Linneaus Research Institute
B. Indian BotanicalII. Taxon Garden
C. BinomialIII. Howrah (India) Nomenclature
D. A unit ofIV. Lucknow classification

A. A III; B IV; C I; D II

B. A IV; B III; C I; D II

C. A IV; B III; C II; D I

D. A IV; B I; C III; D II

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4

The taxonomic unit phylum in the classification of animals is equivalent to which hierarchial level in classification of plants ?

A. Class

B. Order

C. Division

D. Family

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4

Which of the following is not a characteristic of life?

A. Reproduction

B. Complex chemical organization

C. Adaptation to environmental changes

D. Differentiation from cells to tissues

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4

Binomial nomenclature means

A. one name given by two scientists.

B. one scientific name consisting of a generic and specific epithet.

C. two names, one latinized, other of a person.

D. two names of same plant.

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4

Identify the correct sequence of taxonomic categories.

A. Species ? Genus ? Order ? Class ? Family ? Phylum/Division ? Kingdom

B. Species ? Genus ? Family ? Class ? Phylum/Division ? Order ? Kingdom

C. Species ? Genus ? Family ? Order ? Class ? Phylum/Division ? Kingdom

D. Species ? Genus ? Family ? Order ? Class ? Phylum/Division ? Kingdom

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4

Match column-I (Biological name) with column-II (Class) and choose the correct option.
Column-IColumn-II
(Biological name)(Class)
A. Homo sapiensI. Dicotyledonae
B. Musca domesticaII. Mammalia
C. Mangifera indicaIII. Monocotyledonae
D. Triticum aestivumIV. Insects

A. A IV; B II; C I; D III

B. A II; B IV; C III; D I

C. A II; B IV; C I; D III

D. A II; B I; C IV; D III

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4

As we go from species to kingdom in a taxonomic hierachy, the number of common characteristics

A. will decrease.

B. will increase.

C. remain same.

D. may increase or decrease.

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4

The fungi, the filamentous algae, the protonema of mosses, all easily multiply by _____.

A. budding

B. fission

C. regeneration

D. fragmentation

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4

Refer the botanical name of wheat Triticum aestivum and identify the statement which correctly describes it.

A. The second word belongs to genus and starts with a small letter.

B. Both the words Triticum aestivum denote the specific epithet.

C. The first word Triticum denotes the genus which starts with a capital letter.

D. The first word Triticum denotes the specific epithet while the second word denotes the genus.

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4

Statement 1 : Taxon and category are different things.
Statement 2 : Category shows hierarchical classification.

A. Statement- 1 and statement-2 are true and statement-2 is a correct explanation for statement -1

B. Statement -1 and Statement -2 are true; statement-2 is not a correct explanation for statement - 1

C. Statement - 1 is true and statement- 2 is false

D. Both the statements are false.

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4

Systematics refers to the

A. identification and classification of plants and animals.

B. nomenclature and identification of plants and animals.

C. diversity of kinds of organisms and their relationship.

D. different kinds of organisms and their classification.

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4

The sum total of all the chemical reactions occurring in our body is known as

A. metabolism

B. growth

C. regeneration

D. reproduction

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4

Which of the following shows the correct example of taxonomic category - Genus?

A. Potato, tomato and brinjal belong to Solanum.

B. Monkey, gorilla and gibbon placed in Mammalia.

C. Solanum, Petunia, and Datura placed in Solanacea.

D. Mangifera indica, Solanum tuberosum, and Panthera leo.

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4

Which of the following is the only taxonomic categories that has a real existence?

A. Phylum

B. Species

C. Genus

D. Kingdom

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4

Which one of the taxonomic aids can give comprehensive account of complete compiled information of any one genus or family at a particular time?

A. Taxonomic key

B. Flora

C. Herbarium

D. Monograph

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4

Which of the following statement(s) is/are not correct ?
(i) Reproduction is the production of progeny possessing features dissimilar to their parents.
(ii) The fungi, the filamentous algae, the protonema of mosses, all multiply by budding.
(iii) Many organisms like mules, sterile worker bees do not reproduce.
(iv) Reproduction is not an all-inclusive defining characteristic of living organisms.

A. Only (i)

B. Both (i) and (ii)

C. Both (ii) and (iv)

D. All of these

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4

Which of the following statements regarding nomenclature is correct?

A. Generic name always begins with capital letter whereas specific name with small letter.

B. Scientific name should be printed in italics.

C. Scientific name when typed or handwritten should be underlined.

D. All of the above

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4

Which one of the following is the first step in taxonomy ?

A. Naming

B. Description

C. Identification

D. Classification

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4

Which one of the following taxonomical aid is used for identification of plants and animals based on similarities and dissimilarities?

A. Flora

B. Keys

C. Monographs

D. Catalogues

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4

Which of the following taxonomic category of housefly is incorrectly matched?

A. Genus Musca

B. Family Muscidae

C. Order Primata

D. Class Insecta