The Living World Flashcards
Amoeba
Binary fission
Extrinsic growth
Snow mountain
Intron
No protein production
Hydra
Budding
No reproduction
Mute worker bees,infertile human couples etc
In vitro
Outside
Which organism show true regeneration
Planaria
Reproduction
Not exclusive defining characteristic of living organism
Filamentous fungi,bryophyte..Mosses..protenema stage,fil. Algae
Fragmentation
Sum total of all chemical reactions in body
Metabolism
Synthesis of molecules
Anabolism
Break down of molecules
Catabolism
Defining feature of living organism
Metabolism ,sensitivity
Carolus linnaeus1751
Binomial nomenclature
Glucose synthesis by green plants
Anabolic reaction
Variability found among living organism
Biodiversity ..Greek.. bio..life diversity.. forms
Sensitivity
Ability to detect change in the environment and give responses according
Any change detected by organism
Stimulus
Photo period
Length of day
Self consciousness
Only for human beings
Scientific names are usually
Latin
Categorising organism on the basis of easily observable character
Classification
The specific term for the specific character of specific organism
Taxa
Branch of science dealing with the study of principles and procedures of classification
Taxonomy
Taxonomy based on observable morphological characters
Classical taxonomy
Modern taxonomy studies
Study of external, internal, cell structure,development process, and ecological information of organism
Systema -Latin
Means systemic arrangement of organism
Processes that are basic to taxonomy
Characterisation,identification, classification and nomenclature
Aristotle 384-322BC
divided living organism into animals,plants and human beings
Systematics
Branch of science dealing with the diversity and comparative and evolutionary relationship between living organism
Systema naturae
Book of Carolus Linnaeus
Taxonomy-Greek
Taxis and momos
Systematics
Characterisation, identification, nomenclature, classification along with evolutionary study
Reasons for large scale biodiversity
Adaptation, change in genetic constitution,isolation
Vedic literature
740 plants and 250 animals are identified and classified
Life history of organism
Ontogeny
Evolutionary history of organism
Phylogeny
Taxonomy +phylogeny
Systematics
Cabbage
Brassica oleracea var.capitata
Classical or old or descriptive systematics
Based on morphological characters-basic unit is species -pioneer workers Aristotle and Linnaeus
New systematics or bio systematics or neo systematics
Based on all characters -basic unit-population or sub species for new systematics .Term coined by Julian Huxley
Founder of taxonomy
Aristotle
Trinomial nomenclature
Proposed by Lamarck-3words
Indian cow
Corvus Splendans Splendans
Gorilla
Gorilla gorilla gorilla
Indian Babul
Acacia Nilotica var indica
Father of biology
Aristotle
Father of zoology
Aristotle
Binomial epithet of garden pea
Pisum sativum Linn
Father of botany
Theophrastus
Standardisation of scientific name for plants
ICBN and ICNCP
Father of Indian botany or Indian herbaria
William Rouxburgh
Taxonomic category
Unit of classification and represent rank in taxonomic hierarchy
Taxon (plural -taxa)
grouping of organism based on easily observable common characteristics
Existing species today
5-30 million
Classification
Study organism easy and simple
All taxonomic categories together constitute
Taxonomic hierarchy
The word taxon signifies
Taxonomic group of any rank
Taxonomically or scientifically known no. of species
1.7million or13 percent or17 lakh
7 obligate categories
Kingdom,phylum. -animals division-plants,class,order,family,genus,species KPCOFGS
Specificity
Decrease from species to kingdom which means higher category no. of similar characteristics less
Taxonomic hierarchy
Species serves as the basic and lowest category
Species
Organism capable of interbreeding and production of fertile offspring
Potato
Solanum tuberosum ..solanum-genus ..tuberosum..species
Black night shade or Makol
Solanum nigrum
Brinjal,Eggplant
Solanum melange a
Dog
Canis familiaris
Wolf
Canis lupus
Jackal
Canis aureus
Lion
Panthers Leo
Tiger
Panthera Tigris
Leopard
Panthera pardus
Biological concept of species -interbreeding that are reproductively isolated from such other groups
Ernst Mayr
Humans
Homo sapiens
Genus with only one species
Monotypic genus-Homo sapiens
Genus with more than one species
Polytypic
All related species are kept under
One common genus
Solanaceae family
3 genera-Solanum,Patunia,Datura
Liliaceae family
2 genera-Allium,Colchicum
Felidae family
2-Felis-cat,Panthera-lion, tiger and snow leopard,
Carnivora order
Family2-Felidae,canidae(both have canine teeth
Polymoniales order(similar floral characters)
5 family-solanaceae, convolvulaceae, 3 more
Class mammalia -milk producing glands and hair on skin
3orders-rodentia-rats,primata-monkey,gorilla and gibbon,Carnivora-cats and dog
Phylum chordata -presence of notochord (dorsal hollow neural system)
Classes-fishes,amphibians,reptiles,birds and mammals
Kingdom Animalia
All phyla lack cell wall and chlorophyll
Kingdom Plantae
Rigid cell wall,photosynthesis