Which one of the following statements is correct about biodiversity ?
It is the occurrence of varied type of organisms on earth.
Each different kind of plant, animal or organism represents a species.
The number of species that are known and described range between 1.71.8 million.
All of the above
Correct Answer :
D. All of the above
Biodiversity is the term used to describe the variety of life found on Earth and all of the natural processes. This includes ecosystem, genetic and cultural diversity, and the connections between these and all species. The different aspects of biodiversity all have a very strong influence on each other.
Related Questions
Which one of the taxonomic aids can give comprehensive account of complete compiled information of any one genus or family at a particular time?
Taxonomic key
Flora
Herbarium
Monograph
The order generally ends with
ales
aceae
eae
none of these
Two animals which are the members of the same order must also be the members of the same __________.
class
family
genus
species
Refer the botanical name of wheat Triticum aestivum and identify the statement which correctly describes it.
The second word belongs to genus and starts with a small letter.
Both the words Triticum aestivum denote the specific epithet.
The first word Triticum denotes the genus which starts with a capital letter.
The first word Triticum denotes the specific epithet while the second word denotes the genus.
Which of the following statements are correct?
(i) Genus comprises a group of related species.
(ii) Taxon represents a taxonomic group of individual organisms.
(iii) Family comprises a group of related genera.
(iv) Taxonomic category class includes related orders.
(i), (ii), and (iv)
(ii) and (iv)
(i), (iii) and (iv)
(ii), (iii) and (iv)
Each category of taxonomic hierarchy refers to as a unit of ______.
systematic
identification
nomenclature
classification
Which of the following aspects is an exclusive characteristic of living things ?
Isolated metabolic reactions occur in vitro.
Increase in mass from inside only.
Perception of events happening in the environment and their memory.
Increase in mass by accumulation of material both on surface as well as internally.
The keys are based on contrasting characters generally in a pair called _______.
flora
couplet
both (a) and (b)
manuals
The most important feature of all living systems is to
utilize oxygen to generate energy.
replicate the genetic information.
produce gametes.
utilize solar energy for metabolic activities.
In printed scientific names, only the ______ is capitalized.
class
species
genus
family
Genus represents
an individual plant or animal.
a collection of plants or animals.
group of closely related species of plants or animals.
none of the above.
Identify the correct sequence of taxonomic categories.
Species ? Genus ? Order ? Class ? Family ? Phylum/Division ? Kingdom
Species ? Genus ? Family ? Class ? Phylum/Division ? Order ? Kingdom
Species ? Genus ? Family ? Order ? Class ? Phylum/Division ? Kingdom
Species ? Genus ? Family ? Order ? Class ? Phylum/Division ? Kingdom
In majority of higher animals and plants, _____ and _____ are mutually exclusive events.
growth; nutrition
nutrition; consciousness
growth; reproduction
reproduction; consciousness
Systematics refers to the
identification and classification of plants and animals.
nomenclature and identification of plants and animals.
diversity of kinds of organisms and their relationship.
different kinds of organisms and their classification.
Match the common name given in column I with their taxonomic category family given in column II and choose the correct combination from the options given below.
| Column-I | Column-II |
|---|---|
| (Common Name) | (Taxonomic categoryFamily) |
| A. Man | I. Poaceae |
| B. Datura | II. Anacardiaceae |
| C. Mango | III. Solanaceae |
| D. Wheat | IV. Hominidae |
A IV, B III, C II, D I
A IV, B III, C I, D II
A I, B II, C III, D IV
A I, B III, C II, D IV
X being a higher category is the assemblage of families which exhibit a few Y characters. The Z characters are less in a number as compared to different genera included in a family. Identify X, Y, and Z.
X - Order; Y - Similar; Z - Similar
X - Genus; Y - Similar; Z - Different
X - Species; Y - Different; Z - Similar
X - Class; Y - Different; Z - Different
Statement 1 : The species is reproductively isolated natural population.
Statement 2 : Prokaryotes cannot be kept under different species on the basis of reproductive isolation.
Statement-1 and Statement-2 are True and statement-2 is a correct explanation for statement-1
Statement -1 and statement -2 are True and statement-2 is not a correct explanation for statement-1
Statement-1 is true and statement-2 is false
Both the statements are false.
Which of the following shows the correct example of taxonomic category - Genus?
Potato, tomato and brinjal belong to Solanum.
Monkey, gorilla and gibbon placed in Mammalia.
Solanum, Petunia, and Datura placed in Solanacea.
Mangifera indica, Solanum tuberosum, and Panthera leo.
Cell division occurs _______ in plants and _______ in animals.
continuously, only upto a certain age
only upto a certain age, continuously
continuously, never
once, twice
Which two points are known as the twin characteristics of growth?
(i) Increase in mass
(ii) Differentiation
(iii) Increase in number of individuals
(iv) Response to stimuli
(i) and (ii)
(i) and (iv)
(ii) and (iii)
(i) and (iii)
Which of the following statements are correct about herbarium?
It is a store house of collected plant specimens that are dried and preserved on sheets.
Herbarium sheets contain information about date and place of collection, names, family, collectors name, etc.
It serves as quick referral systems in taxonomical studies.
All of the above
Which of the following statements regarding growth is incorrect?
In animals growth is seen up to a certain age.
Increase in body mass is considered as growth.
Growth by cell division occurs continuously throughout their life span in animals.
Increase in mass and number of individuals is the characteristics feature of animal growth.
In multicellular organisms, _____ refers to the production of progeny possessing features more or less similar to those of parents.
growth
reproduction
metabolism
consciousness
Which of the following statements regarding nomenclature is correct?
Generic name always begins with capital letter whereas specific name with small letter.
Scientific name should be printed in italics.
Scientific name when typed or handwritten should be underlined.
All of the above
The living organisms can be unexceptionally distinguished from the non-living things on the basis of their ability for
interaction with the environment and progressive evolution.
reproduction.
growth and movement.
responsiveness to touch.
Match column I with column II and choose the correct option.
| Column-I | Column-II |
|---|---|
| A. Family | I. tuberosum |
| B. Kingdom | II. Polymoniales |
| C. Order | III. Solanum |
| D. Species | IV. Plantae |
| E. Genus | V. Solanaceae |
A IV; B III; C V; D II; E I
A V; B IV; C II; D I; E III
A IV; B V; C II; D I; E III
A V; B III; C II; D I; E IV
Couplet represents the choice made between two opposite options which results in
rejection of both the option.
acceptance of both the option.
either acceptance or rejection of both the option.
acceptance of only one and rejection of the other.
Which of the following statement(s) is/are correct ?
(i) All living organisms have ability to respond the environment stimuli which could be physical, chemical or biological.
(ii) Plants respond to external factors like light, water, temperature, other organisms, pollutants, etc.
(iii) Photoperiod affects the process of reproduction.
(iv) Human being is the only organism who has self consciousness.
Only (i)
Both (ii) and (iii)
Both (i) and (iv)
All of these
Statement 1 : Taxon and category are different things.
Statement 2 : Category shows hierarchical classification.
Statement- 1 and statement-2 are true and statement-2 is a correct explanation for statement -1
Statement -1 and Statement -2 are true; statement-2 is not a correct explanation for statement - 1
Statement - 1 is true and statement- 2 is false
Both the statements are false.
Which one of the following statements is correct about biodiversity ?
It is the occurrence of varied type of organisms on earth.
Each different kind of plant, animal or organism represents a species.
The number of species that are known and described range between 1.71.8 million.
All of the above