5.3 CLASSIFICATION OF BIODIVERSITY Flashcards
GENUS
The first name in the binomial naming system is called the genus and is always capitalized.
group of species
SPECIES
The second name starts with a small letter and is called the species.
The name must be written in italic. (in handwriting, underline the name), for example: Escherichia coli
Genus name abbreviation can be used if the full name is already used, for example E.coli
SUB - SPECIES
species might potentially interbreed if a barrier (e.g. geographical) or other challenge was removed.
TAXON
group of something
TAXONOMY
Scientists arrange or organize species in to a hierarchical set of groups in order to organize organisms into specific similar groups based on similar
characteristics
As one goes higher up on a classification chart, the greater the number of species are included into the group
HOW ANIMALS ARE CLASSIFIED
domain
kingdom
phylum
class
order
family
genus
species
ALL ORGANISMS ARE CLASSIFIED INTO 3 DOMAINS
eukarya
bacteria
archaea
EUKARYA DOMAIN
eukaryotes
organisms that have a membrane bound nucleus
ARCHAEA AND BACTERIA DOMAINS
prokaryotes
organisms that do not have a membrane bound nucleus and their DNA is not associated with proteins
DICHOTOMOUS KEY
used to put an organism into a classification that fits that organism best
BRYOPHYTES
no vascular tissue, very small, use spore to reproduce e.g. moss
No roots, simple leaves and stems
FILICINOPHYTES
has vascular tissue, use spore to reproduce e.g. fern
Has root, short non-woody stems
CONIFEROPHYTES
has vascular tissue, use naked seeds to reproduce e.g pines
Has roots, woody stems
ANGIOSPERMOPHYTES
has vascular tissue, produce flowers e.g. peach tree
Has roots, variable leaves and stems
PORIFERA
sponges, no mouth or anus, filter food from current, attached to rocky surface
CNIDARIA
jellies, radical symmetry, has mouth but no anus, many has stinging cells
