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Definition

Acellular

The organisms/structures that do not have cell organization e.g. viruses, viroids, and prions.

Definition

Animalia

The kingdom includes multicellular heterotrophs that ingest food and digest it in body parts.

Definition

Binomial nomenclature

The system of naming organisms, in which the name consists of two words i.e. generic name and species name.

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Definition

Biodiversity

The variety of species present in an ecosystem and the variety of organisms in each species.

Definition

Class

Ataxon that contains related orders.

Definition

Classification

The grouping of organisms based on similarities found in them.

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Definition

Conservation

Defining the endangered and threatened species and taking measures for their protection.

Definition
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Deforestation

Cutting down trees and converting forests into non-forest areas.

Definition

Endangered species

The species is at risk of becoming extinct because few members are left.

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Definition

Family

A taxon that contains related genera. 

Definition

Fauna

Fauna can refer to the animal life or classification of animals of a certain region, period, or environment. Fauna is also of Latin origin. In Roman Mythology Fauna was the sister of Faunus, a good spirit of the forest and plains.

Definition

Flora

By definition, the flora is a word of Latin origin referring to Flora, the goddess of flowers. Flora can refer to a group of plants, a disquisition of a group of plants, as well as bacteria. Flora is the root of the word floral, which means flowers.

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Definition

Fungi

Eukaryotic heterotrophs absorb food and contain chitin in their cell walls.

Definition

Genus

A taxon that contains related species. 

Definition

Monera

The kingdom includes prokaryotes.

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Definition

Order

Ataxon that contain related families. 

Definition

Phylum

A taxon contains related classes. 

Definition

Plantae

The kingdom of multicellular eukaryotic autotrophs.

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Definition

Prion

The acellular particles that consists of protein only. 

Definition

Soil erosion

Loss of topsoil often results from deforestation and wind or water erosion.

Definition

Protista

The kingdom containing the unicellular, colonial or simple multicellular eukaryotes.

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Definition

Species

A group of similar organisms that can naturally interbreed among themselves to produce fertile offspring. 

Definition

Systematics

The branch deals with the classification and evolutionary histories of organisms. 

Definition

Taxon

The groups into which organisms are classified. 25. Taxonomic hierarchy: The arrangement of taxonomic taxa. 

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Definition

Viroid

The acellular particles consist of circular RNA Only.

Definition

Archaebacteria

The monerans evolved first and live in extreme habitats.

Definition

Eubacteria

The monerans evolved after the archaebacteria. 

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Definition

Eukaryote

An organism that contain eukaryotic cells.

Definition

Monophyletic

In the evolutionary tree, the group of descendants has the same ancestor.

Definition

Prokaryote

Unicellular organisms that do not have a distinct nucleus in their cells e.g. bacteria. 

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Definition

Subspecies

The smaller division of the taxon of species. 

Definition

Threatened species

The species are at risk of becoming extinct in the near future.

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