The Living World Flashcards
The twin characteristics of growth are increase in ______ and increase in ______ of individuals
mass; number
NCERT Page No. 3, Para 3
We can easily observe unicellular organisms growth in which culture?
In-vitro culture
NCERT Page No. 4, Para 1
Three examples of non-living things which exhibit growth by the accumulation of material on the surface are
Mountains,boulders and sand mounds
NCERT Page No. 4, Para 1
Fungi produce millions of ________ to multiply and spread easily.
asexual spores
NCERT Page No. 4, Para 2
What type of asexual reproduction occurs in yeast and hydra?
budding
NCERT Page No. 4, Para 2
Which organism shows true regeneration?
Planaria
NCERT Page No. 4, Para 2
Name three organisms which easily multiply by fragmentation
The fungi, the filamentous algae, and the protonema of mosses
NCERT Page No. 4, Para 2
Name three living organisms which do not reproduce.
Mules, sterile worker bees and infertile human couples
NCERT Page No. 4, Para 2
Which reactions are not living things but surely living reactions?
Isolated metabolic reaction
NCERT Page No. 5, Para 1
Which process affects reproduction in seasonal breeders, both plants and animals?
Photoperiod
NCERT Page No. 5, Para 2
What is the range of the number of species that are known and described?
1.7 to 1.8 million
NCERT Page No. 6, Para 1
The number and types of organisms present on earth refers to
Biodiversity
NCERT Page No. 6, Para 1
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
NCERT Page No. 6, Para 3
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
NCERT Page No. 6, Para 3
The scientific names of plants are based on agreed principles and criteria, which are provided in _________________________
International Code for Botanical Nomenclature
The scientific names of animals are based on agreed principles and criteria, which are provided in ______________________
International Code of Zoological Nomenclature (ICZN)
NCERT Page No. 6, Para 4
Scientific name has two components, namely -
The generic name and The specific epithet
NCERT Page No. 6, Para 5
The system of providing a name with two components is called
Binomial nomenclature
NCERT Page No. 6, Para 5
Binomial nomenclature naming system was given by
Carolus Linnaeus
NCERT Page No. 6, Para 5
The scientific name of mango is
Mangifera indica
NCERT Page No. 7, Para 1
In the scientific name of mango, Mangifera and indica represents ___ and ___ respectively.
Genus & specific epith
NCERT Page No. 7, Para 1
Mangifera indica was first described by
Linnaeus
NCERT Page No. 7, Para 2
The process by which anything is grouped into convenient categories based on some easily observable characters is called
classification
NCERT Page No. 7, Para 3
The process of classifying all living organisms into different taxa is called
taxonomy
NCERT Page No. 7, Para 4