What is an animal?
Made of many cells
Multicellular
Number of kingdoms
6
Symmetry around a central axis; divides the animal into multiple mirror images
radial
Most have a backbone and skeleton of bones; humans
chordata
First animal believed to have existed
sponges
Way in which an animal cell is different from cells of the other kingdoms
Level after class
order
2 openings to digestive system
complete
Appendages, jointed legs, first to fly
arthropoda
Believed ancestor of animals
protist
reproduction creating offspring from two parents producing unique offspring
Makes up a scientific name
genus and species
Take air in through spiracles and circulate through tracheal tubes: sea stars, flatworms, fish or insects?
insects
radial symmetry, exterior spines, all live in ocean
echinodermata
used to establish evolutionary relationships in a cladogram
derived characteristics
cells that have a nucleus
eukaryote
Proper way to write a scientific name (2)
underline, genus capitalizes species lower
fluid-filled cavity between abdominal wall and digestive tract and other organs
coelom
no symmetry, cannot move on their own, water no blood or organs
porifera
Type of classification that uses shared traits to represent evolutionary changes in organisms
cladistics
Need to consume food instead of making it
heterotroph
Domain for plantae
Eukarya
Asexual reproduction where an organism breaks down into pieces and each piece grows into a new organism
bilateral, complete digestive system, ringed and segmented body
annelida
Trait(s) that salamanders have that lampreys do not
jaws and 4 walking legs