Living World Flashcards
What type of asexual reproduction occurs in yeast and hydra?
budding
The twin characteristics of growth
Increase in mass, Increase in number
We can easily observe unicellular organisms growth in which culture ?
In-vitro culture
Three examples of non-living things which exhibit groth by accumulation of material on the surface are
Mountains, boulders and sand moulds
Fungi produce millions of ____ to multiply and spread easily
asexual spores
Which organism show true regeneration ?
Planaria
Name three organisms which easily multiply by fragmentation
The fungi, the filamentous algae and the protonema of mosses
Name three living organisms which do not reproduce
Mules, sterile worker bees and infertile human couples
Which reactions are not living things but surely living reactions ?
Isolated metabolic reactions
Which process affects reproduction in seasonal breeders, both plants and animals ?
Photoperiod
What is the range of the numbers of species that are known and described ?
1.7 to 1.8 million
The number and types of organisms present on earth refers to
Biodiversity
What is the process of standardising the naming of living organisms such that a particular organism is known by the same name all over the world called ?
Nomenclature
Nomenclature or naming is only possible when the organism is described correctly and we know to what organism the name is attached. This is ____
Identification
The scientific names of plants are based on agreed principles and criteria, which are provided in
International Code for Botanical Nomenclature (ICBN)
The scientific names of animals are based on agreed principles and criteria, which are provided in
International Code of Zoological Nomenclature (ICZN)
Scientific name has two components, namely -
The generic name and the specific epithet
The system of providing a name with two components is called
Bionomial nomenclature
Binomial nomenclature naming system was given by
Carolus Linnaeus
The scientific name of mango is
Magnifera indica
Magnifera indica was first described by
Linnaeus
In the scientific name of mango, Magnifera and indica represents ___ and ___ respectively.
Generic & specific epithet
Magnifera indica was first described by
Linnaeus
The process by which anything is grouped into convenient categories based on some easily observable characters is called
classification
The process of classifying all living organism into different taxa is called
taxonomy
External and internal structure, along with the structure of cell, development process and ecological information of organisms are essential and form the basis of
Modern taxonomic studies
The branch of study of knowing more about different kinds of organism and their diversities, but also the relationships among them was refered to as
systematics
The word systematics is derived from the Latin word-
Systema
What is the title of publication of Linnaeus ?
Systema Naturae
The category which is the part of overall taxonomic arrangement, it is called
Taxonomic category
All taxonomic categories together constitute the ___
Taxonomic hierarcy
Each category represents a rank and is commonly termed as
Taxon
Each ____ is the unit of classification
category / rank/ taxon
Taxonomic studies consider a group of individual organism with fundamental similarities as a ___
species
One should be able to distinguish one species from the other closely related species based on the
distinct morphological differences
The scientific name of potato id
Solanum tuberosum
The scientific name of lion is
Panthera leo
Solanum includes species like
nigrum and melongena
The scientific name of human being is
Homo sapiens
A group of related species which has more characters in common in comparison to the species of other genera -
Genus
Potato and Brinjal belong to the same genus
Solanum
The scientific name of leopard is
Panthera pardus
The scientific name of tiger is
Panthera tigris
Genus which includes cats is
Felis
A group of related genera with less number of similarities as compared to genus and species -
Family
Three different genera Solanum, Petunia and Datura are placed in the family -
Solanaceace
Genus Panthera is put along with genus Felis in the family -
Felidae
A dog is placed in the family called
Canidae
A category which is the assemblage of families and exhibit a few similar charcters is
Order
Plant families like Convolvulaceace, Solanaceace are included in the order
Polymoniales
Animal families like Felidae, Canidae are included in the order
Carnivora
Order of monkey, gorilla and gibbon -
Primata
Order Primata along with order Carnivora is placed under class -
Mammalia
In cases of animals, classes with few similar characters are assigned to a higher category called
Phylum
In cases of plants, classes with few similar characters are assigned to a higher category called
Division
All animals belonging to various phyla are assigned to the highest category called
Kingdom Animalia
The scientific name of Wheat is
Triticum aestivum
The scientific name of Housefly is
Musca domestica
Mention the Genus, Family, Order, Class, Phylum of man -
Homo, Hominidae, Primata, Mammalia, Chordata
Mention the Genus, Family, Order, Class, Division of mango -
Mangifera, Anacardiaceae, Sapindales, Dicotyledonae, Angiospermae
Mention the Genus, Family, Order, Class, Phylum of Housefly -
Musca, Muscidae, Diptera, Insecta, Arthropoda
Mention the Genus, Family, Order, Class, Division of Wheat -
Triticum, Poaceae, Poales, Monocotyledonae, Angiospermae
____ contain information on any one taxon.
Monographs
The scientific name of Earthworm is
Pheretima posthuma
The scientific name of Cockroach is
Periplaneta americana
The scientific name of Frog is
Rana tigrina
The scientific name of Dog is
Canis familiaris
ICVN
International Code of Viral Nomenclature
Which of the following is less general in characters as compared to genus
Species
The scientific term for biological classification categories is
Taxon
The scientific term for biological classification categories is
Taxon
Consider the following two statements :
I : In the single celled organisms, we are not very clear about the usage of the two terms - growth and reproduction.
II : When it comes to unicellular organisms like bacteria, unicellular algae or amoeba, reproduction is synonymous with growth
- Both I and II are two and II explains I
- Both I and II are two and II does not explains I
1
Consider the following two statements :
I. Cellular organisation of the body is the defining feature of life forms.
- Metabolic reactions cannot be demonstrated outside the body in cell-free systems
- Both I and II are two and II explains I
- Both I and II are two and II does not explains I
- I is true but II is false
- Both I and II are false
3
The most obvious & complicated feature of all living organisms is :
- The ability to sense heir environment and responds to these environmental stimuli
- Reproduction - asexual or sexual
1
____ the taxa, ___ are the characteristics that members within the taxon share
higher: more
When it comes to ____ reproduction is synonymous with growth,i.e. increase in number in cells
unicellular organisms like bacteria, unicellular algae or Amoeba
The scope of systematics was later enlarged to include
identification, nomenclature and classification
genus ____, comprising lion, tiger, leopard is put along with genus, _____ in the family Felidae
Panthera; Felis
Solanum includes species like ____
nigrum and melogena
What is the order of taxons from kingdom to species
kingdom, phylum or division, class, order, family, genus, species
_____ are essential and form basis of modern taxonomic studies.
External and internal structure, along with the structure of cell, development process and ecological information of organisms
Mark A, B, C, D, E and F in the given figure:-
A- Phylum B- Division C- Class D- Order E- Family F- Genus