Classification and Biodiversity

These flashcards cover key concepts related to classification and biodiversity as discussed in the lecture notes.

What is Taxonomy?

Taxonomy is the classification of all organisms into groups.

What is Phylogeny?

Phylogeny is the study of evolutionary relatedness between organisms.

What do the two parts of a scientific name represent?

The first word refers to the Genus, and the second word refers to the Species. The second may describe some characteristics of the organism

What is a Dichotomous Key?

A biological tool for identifying unknown organisms at some taxonomic level.

What are the three domains of life?

The three domains are Archaea, Bacteria, and Eukarya.

What is the broadest level of classification?

Domain is the broadest range of classification of life.

What level of classification comes after Kingdom?

Phylum comes after Kingdom in the classification hierarchy.

What is meant by ecological niche?

An ecological niche refers to the role of an organism in its environment.

What is a significant factor affecting current extinction rates?

Many extinctions today are thought to be due to human impact on the environment.

What are the levels of classification in biology?

The levels of classification, known as the taxonomic hierarchy, are Domain, Kingdom, Phylum, Class, Order, Family, Genus, and Species.

What is a Domain in biological classification?

A Domain is the highest taxonomic rank and includes three categories: Archaea, Bacteria, and Eukarya.

What is a Kingdom in biological classification?

A Kingdom is the second highest taxonomic rank and includes groups like Animalia, Plantae, and Fungi.

What distinguishes a Phylum in biological classification?

A Phylum is a group of related classes that share a basic body plan or structure.

What is the significance of the Genus in biological classification?

The Genus is a taxonomic rank that groups species that are closely related and share a common