Unit 1 Flashcards
What is biodiversity
Biodiversity is the variety of life found in a particular ecosystem
What are the 3 types of diversity
Ecological diversity
Genetic diversity
Species diversity
What is ecological diversity
The variety of terrestrial and aquatic ecosystems found in an are or on earth
What is genetic diversity
The variety of genetic material within a species or a population
What is species diversity
The number and abundance of a species present in different communities
What is species composition
Which particular species are present
What is species richness
The total number of different species in an area
What is species evenness
How relatively abundant each of the species are
What are some benefits of biodiversity
The higher the biodiversity, the more robust the ecosystem is
- food and drink
- medicines
- ecological services
- leisurely, cultural, and aesthetic values
What are some causes of biodiversity loss
- Pollution
- loss of tropical forest
- spread of urban areas
- warfare
- large dam construction
- road building
- tourism
- loss of traditional lifestyle
What does diversity mean
Different
What is classification
The process by which organisms are grouped together
Who developed the international system of naming organisms
Carl Linnaeus
What Is the international system of naming called
Binomial nomenclature
How does binomial nomenclature work
The first name is the genus name (always capitalized) the second name is the species name (always lower case)
E.g Canis Lupus
The name is AlWAYS underlined when
HANDWRITTEN
What is taxonomy
The study of classifying organisms
What are taxonomists
Scientists who specialize in studying the relationships among organisms
What are taxons
Taxons are groups that classify organisms from least specific to most
What are all the taxons in order from least specific to most
Domain
Kingdom
Phylum
Class
Order
Family
Genus
Species
What is evidence from anatomy
- The study of the structure of organisms
- Using anatomical evidence from living species to determine relationships among organisms
What is evidence from physiology
- The study of the function of animals
- includes studying the biochemistry and proteins of organisms
-since proteins are determined from genes and DNA the degree of genetic similarities is determined
What is evidence from DNA
The more genes and genetic Sequences two individuals have in common the more closely related they are
What is phylogeny
Used to present an evolutionary hypothesis about an organisms history
What is caladogram
A branching diagram that resembles a phylogenetic tree