Biodiversity

Biological diversity

Variety of living beings on Earth

index

Introduction

Activity

Classification

Taxonomy

Kingdoms

Taxa

Trees

Introduction

Biodiversity

To make it easier, biologist classify species according to taxonomic categories and evolutionary relationships.

Some biologist calculate around 8.75 millions of species, however only 1.2 have been described by scientists

Taxonomy

Taxonomy

Phylogenetics

Taxonomy the branch of science concerned with classification, especially of organisms; it names and classify species.

Phylogenetics is the study of evolutionary relationships between biological entities (species, genes, or proteins), using observable traits or genetic sequences to construct phylogenetic trees.

Species is the smallest taxon. The scientific name consists of two Latin words, which are genus and species. They should be written in italics. The first letter (genus) is capitalized, and all letters of the species are lowercase. Examples of species:

Taxon and taxa

A taxon (plural: taxa) is a group of one or more organisms that are classified together based on shared characteristics and arranged in a hierarchical system of biological classification, known as taxonomy. E.g. Vertebrates taxon, Canidae taxon.

Tiger: Panthera tigris

Domestic cat: Felis catus

Jaguar: Panthera onca

Axolotl (Xochimilco): Ambystoma mexicanum

Classification- Taxonomic levels

Species

Genus

Family

Order

Class

Phyllum

Kingdom

Domain

Kingdoms of life

The most recent classification considers kingdoms Arquea, Bacteria, Fungi, Protista (protozoos and algae), Animalia (animals) y Plantae (plants)

Phylogenetic trees

Since phylogeny seeks to find the evolutionary history of groups, it is common to represent this history with a diagram known as a phylogenetic tree, which is similar to a genealogy.

Activity

Prokaryota

Domain

Eukaryota

Kingdom

Phyllum

Class

Order

Who am I?

Family

Genus

Species

Prokaryota

Domain

Eukaryota

Kingdom

Fungi

Plantae

Animalia

Phyllum

Class

Order

Who am I?

Family

Genus

Species

Domain

Eukaryota

Kingdom

Animalia

Annelida

Chordata

Phyllum

Class

Order

Who am I?

Family

Genus

Species

Domain

Eukaryota

Kingdom

Animalia

Chordata

Phyllum

Mammalia

Reptilia

Amphibia

Class

Order

Who am I?

Family

Genus

Species

Domain

Eukaryota

Kingdom

Animalia

Chordata

Phyllum

Mammalia

Class

Rodentia

Primates

Carnivora

Order

Who am I?

Family

Genus

Species

Domain

Eukaryota

Eukaryota

Kingdom

Animalia

Chordata

Phyllum

Mammalia

Class

Carnivora

Order

Who am I?

Felidae

Ursidae

Canidae

Family

Genus

Species

Domain

Eukaryota

Eukaryota

Kingdom

Animalia

Chordata

Phyllum

Mammalia

Class

Carnivora

Order

Who am I?

Canidae

Family

Genus

Canis

Lycalopex

Species

Domain

Eukaryota

Eukaryota

Kingdom

Animalia

Chordata

Phyllum

Mammalia

Class

Carnivora

Order

Who am I?

Canidae

Family

Genus

Canis

Canis lupus

Canis latrans

Species

Canis rufus

Domain

Eukaryota

Eukaryota

Kingdom

Animalia

Chordata

Phyllum

Mammalia

Class

Carnivora

Order

Who am I?

Canidae

Family

Genus

Canis

Canis lupus

Species

Actividad

Domain

Eukaryota

Eukaryota

Kingdom

Animalia

Chordata

Phyllum

Mammalia

Class

Carnivora

Order

Who am I?

Canidae

Family

Genus

Canis

Canis lupus

Species

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