Biodiversity Flashcards
(28 cards)
What’s biodiversity?
The variety of life in the world. Used to measure the health of ecosystems.
What is a species?
A group that can freely breed under natural conditions.
Hybridization:
Crossbreeding of two different species
Morphology:
Physical appearance and characteristics of an organism
Variation:
Differences among individuals in a species, often due to unique gene combinations, contributing to genetic diversity
Evolutionary change:
Populations grow or change over long periods of time
Genetic diversity:
All the different forms of genes in a species, helps species survive
Ecosystem diversity:
Includes both heterotrophs and autotrophs
Heterotrophs:
Organism that eats others for energy
Autotrophs:
Organisms that produce their own food from natural elements
Ecosystem:
Made of species and their environment
Species diversity:
means having different types of plants, animals, and other living things in an ecosystem. It helps the ecosystem survive changes in the environment.
Ecosystem diversity:
means having different places where plants, animals, and other living things live. More variety makes the ecosystem healthier.
Human impact:
High biodiversity helps ecosystems stay strong, and important species like honeybees are key to their survival.
Biodiversity loss:
Threatens food supply, eliminates natural medicines, disrupts ecosystems, and affects tourism and forestry
Taxonomy:
The science of classifying organisms
( created by Carolus Linnaeus)
How organisms are classified:
Based on observable characteristics such as morphology, behaviour, and geographic location
What scientific name is a species given:
Binomial nomenclature
Genus is capitalized, followed by the species name
Organism that look the same are grouped into:
Levels or ranks
What is each level called:
Taxon
Classification hierarchy
Kingdom—phylum—class—order—family—genus—species
Prokaryotes
Unicellular organisms with no membrane bound organelles
Eukaryotes
Unicellular and multicellular organisms with organelles with membranes around the organelles
6 kingdoms, these include:
Animals, plants, fungi, bacteria, archaea, protist