Evolution and biodiversity Flashcards
the hierachy of taxa
Domain Kingdom Phylum class order family genus species
what are the 3 domains
Eubacteria
Archaea
Eukaryota
What are the 4 Phylum of plants
Bryophyta
Filicinophyta
Coniferophyta
Angiospermophyta
What are the 7 Phylum of Animals
Porifera Cnidaria Platyhelminths Mollusca Annelida Arthropoda Chordata
what are the 5 clases of Chordata
fish amphibians reptiles birds mammals
what is the binomial system
each organism has two latin names: its genus and species e.g.: Homo Sapiens
Advantages of the binomial system
the system is international
names are agreed at congress
all biologists use the same names
misunderstandings through language differences are prevented
the first name is the genus and shows which other species are closely related
which group of plants have flowers
angiospermophyta
which taxt are used in the binomial system
genus and species
example of porifera
sponges
recognition features of porifera
no special shape
no mouth or anus
lack tissues and organs
collectiom of cells of different types organised into pores, canals and chambers
recognition features of Cnidaria
two cell layers radial symetry mouth some corals have hard calcareous cover tentacles with stinging cells
example of Cnidaria
jellyfish/corals
example of platyhelminthes
flatworms/tapeworms
recognition features of plathyhelminths
flat and unsegmented bilateral symetry mouth but no anus rudimentary head no vascular system
