classification
a system used by scientists to group and sort living and non-living things based on the characteristics they share
taxonomy
the branch of science concerned with classification of organisms
Carolus Linnaeus
Father of Taxonomy; developed binomial nomenclature; his grouping system grouped organisms from kingdom through species
binomial nomenclature
developed by Carolus Linnaeus; names come from the organism’s genus and species
italicized, capitalized
In binomial nomenclature, the genus and species are [capitalized/bolded/italicized/underlined], and the genus is [capitalized/bolded/italicized/underlined].
dichotomous key
In each step of the _______________ _____, two choices are given with directions for what to do next. Each choice leads to either another choice or the identity of the object or organism.
domain, kingdom, phylum, class, order, family, genus, species
the eight taxa from least specific to most specific
species, genus, family, order, class, phylum, kingdom, domain
the eight taxa from most specific to least specific
Eukarya, Animalia, Chordata, Mammalia, Primate, Hominidae, Homo, sapiens
human classification from least specific to most specific (make sure not to capitalize the species)
Eukarya
What domain do humans belong to?
Animalia
What kingdom do humans belong to?
Chordata
What phylum do humans belong to?
Mammalia
What class do humans belong to?
Primate
What order do humans belong to?
Hominidae
What family do humans belong to?
Homo
What genus do humans belong to?
sapiens
What species do humans belong to?
Bacteria, Archaea, Eukarya
What are the names of the three domains?
no
Bacteria: Is it multicellular?
yes, peptidoglycan
Bacteria: Does it have a cell wall? What is it made of?
no, no
Bacteria: Does it have a nucleus? Does it have membrane-bound organelles?
asexually
Bacteria: Does it reproduce sexually or asexually or both?
both
Bacteria: Is it a heterotroph or autotroph or both?
found as rods, spirals, and spheres
Bacteria: What other important information is there?
no
Archaea: Is it multicellular?
yes, not peptidoglycan
Archaea: Does it have a cell wall? What is it made of?
no, no
Archaea: Does it have a nucleus? Does it have membrane-bound organelles?
asexually
Archaea: Does it reproduce sexually or asexually or both?
both
Archaea: Is it a heterotroph or autotroph or both?
live in extreme environments
Archaea: What other important information is there?
mostly
Eukarya: Is it multicellular?
yes, chitin or cellulose
Eukarya: Does it have a cell wall? What is it made of?
yes, yes
Eukarya: Does it have a nucleus? Does it have membrane-bound organelles?
both
Eukarya: Does it reproduce sexually or asexually or both?
both
Eukarya: Is it a heterotroph or autotroph or both?
found as protists, fungi, plants, and animals
Eukarya: What other important information is there?
Protista, Fungi, Plantae, Animalia
What are the names of the four kingdoms that belong to the Eukarya domain?
mostly unicellular
Protista: Are they unicellular or multicellular?
both
Protista: Are they autotrophs or heterotrophs or both?
yes and no, cellulose and chitin
Protista: Do they have cell walls and what are they made of?
Protista
Euglena, slime mold, and paramecium, are part of which kingdom?
mostly multicellular
Fungi: Are they unicellular or multicellular?
heterotrophs
Fungi: Are they autotrophs or heterotrophs or both?
yes, chitin
Fungi: Do they have cell walls and what are they made of?
Fungi
Mushrooms and yeast are part of which kingdom?
multicellular
Plantae: Are they unicellular or multicellular?
autotrophs
Plantae: Are they autotrophs or heterotrophs or both?
yes, cellulose
Plantae: Do they have cell walls and what are they made of?
Plantae
Cucumber plants are part of which kingdom?
multicellular
Animalia: Are they unicellular or multicellular?
heterotrophs
Animalia: Are they autotrophs or heterotrophs or both?
no
Animalia: Do they have cell walls and what are they made of?
Animalia
Cats are part of which kingdom?
general characteristics
Animals under the kingdom Animalia can be separated into their phyla by their group’s __________ _______________.
symmetry, mobility, digestive tracts
three traits that distinguish phyla from each other
symmetry
the repetition of the parts in an animal or plant in an orderly fashion
asymmetry, radial symmetry, bilateral symmetry
the three types of symmetry
heads
Animals that are bilaterally symmetrical have _____.
mobility
the ability to move
sessile
opposite of mobile
digestive tract
where food enters and waste exits
alimentary canal
Almost all animals have a digestive tract. Some animals have a single entrance into their digestive tract through which food enters and waste exits. Other animals have a(n) ________________ _____ with a separate mouth and anus.
Porifera, Cnidaria, Platyhelminthes, Annelida, Mollusca, Arthropoda, Chordata
What are the names of the seven phyla that belong to the Animalia kingdom?
sea sponges
Porifera: What are some of the representative species?
asymmetry
Porifera: Does it have asymmetry, radial symmetry, or bilateral symmetry?
no
Porifera: Can these organisms move?
neither
Porifera: Does it have neither a mouth nor an anus, just a mouth, or both?
are porous to allow for feeding
Porifera: What are some other important features?
jellyfish, sea anemones
Cnidaria: What are some of the representative species?
radial symmetry
Cnidaria: Does it have asymmetry, radial symmetry, or bilateral symmetry?
most can
Cnidaria: Can these organisms move?
mouth
Cindaria: Does it have neither a mouth nor an anus, just a mouth, or both?
have stinging cells and a primitive nervous system
Cnidaria: What are some other important features?
flatworms, tapeworms, planaria
Platyhelminthes: What are some of the representative species?
bilateral symmetry
Platyhelminthes: Does it have asymmetry, radial symmetry, or bilateral symmetry?
yes
Platyhelminthes: Can these organisms move?
mouth
Platyhelminthes: Does it have neither a mouth nor an anus, just a mouth, or both?
have flat bodies and are often parasitic
Platyhelminthes: What are some other important features?
earthworms, leeches
Annelida: What are some of the representative species?
bilateral symmetry
Annelida: Does it have asymmetry, radial symmetry, or bilateral symmetry?
yes
Annelida: Can these organisms move?
both
Annelida: Does it have neither a mouth nor an anus, just a mouth, or both?
have ringed segments and multiple hearts
Annelida: What are some other important features?
snails, octopuses, bivalves
Mollusca: What are some of the representative species?
bilateral symmetry
Mollusca: Does it have asymmetry, radial symmetry, or bilateral symmetry?
yes
Mollusca: Can these organisms move?
both
Mollusca: Does it have neither a mouth nor an anus, just a mouth, or both
have a muscular foot and a mantle (shell)
Mollusca: What are some other important features?
spiders, lobsters, insects
Arthropoda: What are some of the representative species?
bilateral symmetry
Arthropoda: Does it have asymmetry, radial symmetry, or bilateral symmetry?
yes
Arthropoda: Can these organisms move?
both
Arthropoda: Does it have neither a mouth nor an anus, just a mouth, or both?
have jointed appendages and an exoskeleton
Arthropoda: What are some other important features?
mammals, birds, fish, reptiles, amphibians
Chordata: What are some of the representative species?
bilateral symmetry
Chordata: Does it have asymmetry, radial symmetry, or bilateral symmetry?
yes
Chordata: Can these organisms move?
both
Chordata: Does it have neither a mouth nor an anus, just a mouth, or both?
have a notochord
Chordata: What are some other important features?
Fish, Amphibian, Reptile, Bird, Mammal
What are the names of the five classes that belong to the chordata phylum?