1.1/1.3 Kahoot - Classifying Life's Diversity Flashcards
species concepts
- Biological
- Phylogenetic
- morphological
The morphological species concept defines species by
The size, shape, and structure of an organism or its parts
A limitation of the morphological species concept:
members of the same species can appear quite different
the phylogenetic species concept…
defines species based on their common ancestor
What is an advantage of the Phylogenetic Species concept?
can be applied to extinct species
The biological species concept defines a species as
Population that can mate and produce fertile offspring
The biological species concept is inadequate for grouping
asexual organisms.
What is the primary, accepted species concept?
biological
What is the current most widely accepted definition of “species”?
Organisms that can interbreed and create viable offspring
What is Binomial Nomenclature?
A classification system using 2 names to identify a species
Binomial Nomenclature naming uses what 2 taxon?
Genus name + Species name
Hierarchal Classification was invented by ____________.
Carlolus Linneaus
What is the hierarchal scheme of classification?
DOMAIN> KINGDOM> PHYLUM> CLASS> ORDER> FAMILY> GENUS> SPECIES
Which is the taxonomic rank containing the largest number of organisms?
Domain
Which is the taxonomic rank containing the fewest organisms?
Species
the 3 Domain
Eukarya
Archaea
Bacteria
one of the three types of evidence used to show relationships between organisms?
anatomical
physiological
DNA
The fossil record provides evidence that
Older species gave rise to more-recent species.
Similar DNA sequences in genes can be evidence of:
Common ancestry
What are homologous structures?
Structures with a similar anatomy but different function
What is the definition of taxonomy?
The science of classifying organisms
What is the relationship between DNA and relatedness?
The more DNA in common, the more related 2 organisms are.
What does a phylogenetic tree show us?
How closely related species are based on DNA evidence.
what is a cladogram?
a diagram that is based on patterns of shared traits
What do clades represent?
a group of organisms with a last common ancestor
3 important reasons for proper classification of organisms
agriculture
conservation
medical
The red maple has the scientific name Acer rubrum. Its species name is
rubrum
In 1990, Carl Woese proposed a new level of classification called the
three-domain system
Which domain is NOT prokaryotic?
Eukarya
Organisms in Domains Bacteria & Archaea are_______________
Prokaryotic
Archaea are put in a different domain to bacteria because…
They have a different biochemistry
All members of the Kingdom Animalia are multicellular _________.
heterotrophs whose cells lack walls
What are the six kingdoms of life?
Animals, plants, fungi, protista, archaea, and bacteria
The kindgoms that belong to Eukarya
animals, fungi, protist, plants
The domain Eukarya contains:
unicellular and multi-cellular organisms
One way Prokaryotes and Eukaryotes differ is:
Eukarya have organelles and Prokarya don’t
Humans belong in what kingdom?
animals
An autotroph…
Makes its own food
The Kingdom that contains multicellular autotrophs?
Plant
Heterotroph means?
organism that cannot make its own food
Which kingdom has cell walls with PEPTIDOGLYCAN?
Bacteria
Which kingdom has a cell wall but no nucleus?
Archaea
I am living, my cells have a nucleus, I am multicellular, with no cell wall, and no chloroplasts, so I am a(n)…..
Animal
The presence of CHITIN in a cell wall automatically clues you that it is what kingdom?
fungi
What kingdoms have NO TRUE nucleus?
Bacteria & Archaea
A dichotomous key is…
sets of paired statements use to identify an organism
How many choices are there in a dichotomous key?
2
