the Living World Flashcards
All living organisms whether unicellular or multicellular grow by ____ ________.
Cell division
______ and ___________ are mutually inclusive events in unicelled organisms.
Growth
Reproduction
Cell division not only occurs in living organisms at the time of growth and reproduction but also during maintenance to replace _____ _____ due to some injury.
Lost cells
New cells are formed by division in various living beings to maintain _____, _______ and structure of a body.
Size
Shape
Structure
______ cannot be taken as defining property of living organisms.
Growth
In _________ organisms reproduction is synonymous with growth.
Unicellular
At protenema stage of bryophytes what type of asexual reproduction occurs?
Fragmentation
________ (flat worms) exibit an extraordinary ability to regenerate their lost body part ie known as regeneration.
Planaria
___________ can be regarded as characteristic if living organisms but it is not their exclusive defining characteristic.
Reproduction
Amoeba reproduces by _________.
Fission
__________ can be regarded as defining feature of all living organisms.
Metabolism
Photosynthesis is
(1) Catabolic reactions
(2) Anabolic reactions
(3) Decomposition reactions
(4) Chain reactions
Anabolic reactions
Metabolic reaction involves
(1) Synthesis of biomolecules only
(2) Breakdown of some biomolecules only
(3) All physical changes which occur in objects around us
(4) All chemical reactions which occur inside an organism
All chemical reactions which occur inside an organism
Stimulus can be ________, ________ or _________.
Physical
Chemical
Biological
According to IUCN currently known and described species of all organisms are between __ to __ million.
1.7
1.8
Bionomial nomenclature for specific naming of organisms was developed by _______ _________.
Carolus Linnaeus
Biological names are generally taken from _______ language irrespective of their origin.
Latin
Linnaeus releases the 10th edition of Systema Naturae for animals in ____ and for plants in year ____ in Species Plantarum.
1758
1753
The classical taxonomy is based on ______________ characters.
Morphological
In vedic literaturr ___ plants and ___ animals are being identified and classified.
740
250
Aristotle divided living beings into _______, _______ _______ and _______.
Animals
Human beings
Plants
Systematics was first used by Carolus Linnaeus in the tittle of his book published as ________ ________.
Systema Naturae
Taxonomy is derived from two ______ words _______ and ______.
Greek
Taxis
Nomos
The number of similar characters of categories ___________ from lowest rank.
Decreases
______ ______ gave most accepted biological concept of species which defines species as a group of actually or potentially interbreeding populations that are reproductively isolated from other such groups.
Ernst Mayr
All the related species in one genus have a common __________.
Ancestory
Solanum, Petunia, Datura are kept under family __________.
Solanaceae
________ which includes two different but related genera ie Alium and Colchium.
Liliaceae
The family Felidae of cats and Canidae of dogs is assigned to the same order __________ as they both have ________ _______ ie their similar feature.
Carnivore
Canine teeth
Monkey, gorilla and gibbon are placed under order - _______.
Primata
Rodentia (rats), Primata (moneky, gibbon, gorilla) carnivora (dogs and cats) are all placed under class mammalia as they have _____ producing glands and _____ on their skin.
Milk
Hair
