Intro Flashcards
(27 cards)
What is the definition of classification?
Classification can be defined as the science of grouping organisms into categories based on features of fundamental importance such as structure, function, and behaviour.
What are the hierarchical terminologies employed in classification?
The hierarchical terminologies are:
* kingdom
* phylum
* class
* order
* family
* genus
What is the importance of classification?
- Makes the study of a wide variety of organisms easier
- Provides a good picture of all life forms at a glance
- Helps understand the relationship between different groups of organisms
- Serves as a base for the development of other biological sciences
Who proposed the system of Binomial Nomenclature?
Carl Linnaeus proposed the system of Binomial Nomenclature in 1735.
What is Binomial Nomenclature?
Binomial nomenclature is the system of naming organisms that consists of two Latin names: the first name is the genus and the second name is the species.
Fill in the blank: The scientific name of the domestic cat is _______.
Felis domesticus
How does classification help in biological sciences?
Classification helps in various fields like agriculture, public health, environmental biology, forestry, and behavioural sciences by providing proper identification and classification of organisms.
True or False: More than fifty times the existing species have become extinct.
True
What does the term ‘extinct’ refer to in the context of classification?
Extinct refers to species that have vanished from the surface of the earth.
What are the features on which classification is based?
Classification is based on features such as:
* structure
* function
* behaviour
* genetic make-up
What is the format for writing a scientific name?
Both names are in Latin and printed in italics. If handwritten, they should be underlined separately.
What is the scientific name of a cat?
Felis domestica
What does the generic name in a scientific name represent?
The genus of the organism, starting with a capital letter.
In the scientific name Homo sapiens, what does ‘Homo’ signify?
The genus name of a human.
In the scientific name Homo sapiens, what does ‘sapiens’ signify?
The species name, starting with a small letter.
What is phylogenetic classification?
A biological classification based on the evolutionary relationship between organisms.
Who proposed the system of phylogenetic classification?
Carl Linnaeus in 1735.
What is taxonomy?
The study of general principles of classification.
What are the two Greek roots of the word ‘taxonomy’?
Taxis (meaning arrangement) and nomos (meaning law).
How many major taxonomic levels are there?
Seven major levels.
What is the broadest category in the hierarchy of classification?
Kingdom
What is the most specific category in the hierarchy of classification?
Species
List the seven taxonomic levels in order from broadest to most specific.
- Kingdom
- Phylum
- Class
- Order
- Family
- Genus
- Species
What mnemonic can help remember the taxonomic levels?
Keep Plates Clean Or Family Gets Sick
