Biology Ch-1 the living world

Number of species that are known and described range between

1.7-1.8 million

Biodiversity

number and types of organisms present on earth

ICBN

International Code of Botanical Nomenclature, governing plant naming conventions.

ICZN

International Code of Zoological Nomenclature, governing animal naming conventions.

Two components of a scientific name

Generic name and specific epithet

system of providing names with two components

Binomial nomenclature

The naming system was given by

Carolus Linnaeus

scientific name of mango

Mangifera indica

First word of a scientific name represents

Genus

Second word of a scientific name represents

specific epithet

The process by which anything is grouped into convenient categories based on some easily observable characters

Classification

Scientific term for the categories

Taxa

Process of classification

Taxonomy

What are the basis of modern taxonomic studies?

external and internal structure,cell structure,development process and ecological information of organisms

What are the basic processes of taxonomy?

Charecterisation,Identification,Classification,Nomenclature

the study of the diversification of living organisms, encompassing their classification, nomenclature, and evolutionary relationships.

systematics

Each category,referred to as unit of classification represents a rank and referred as

taxon

Name all the categories

Kingdom,phylum or division, class, order,family, genus,species

potato

Solanum tuberosum

lion

Panthera leo

human being

Homo sapiens

potato and brinjal belong to the same genus

Solanum

lion,leopard and tiger belong to same genus

Panthera

panther

Panthera pardus

Families are characterised on the basis of _______ and ________ features.

vegetative and reproductive

Solanum,petunia and datura are placed in family ______

Solanaceae

Genus in family felidae

Panthera and Felis

Convolvulaceae and solanaceae are included in the order

Polymoniales

Carnivora includes family

Felidae and Canidae