Zoology Vocab 1

AHHHH

Bilateral Symmetry

arangement fo body parts, single plane divides into right and left mirror images

cladogram

diagram depicting the evolutionary history of taxa

class

a level of classification between phylum and order

domain

the broadest taxonomic grouping, 3 [ ] - archaea, bacteria, eukarya

evolutionary conservation

slowness of change in a characteristic of an animal overtime

evolutionary systematics

study of the classification of, and evolutionary relationships among animals

monophyletic group

a group of organisms descended from a single ancestor

nomenclature

study of the naming of organisms in the way that it reflects their evolutionary relationships

kingdom

kind of classification above phylum. there are 5 - monera, protista, fungi, plantae, animalia

phylogenetic systematics

study of the relationships among organisms in which true and false similarities are differentiated

radial symmetry

plane passing through oval - axis divides into mirror images (divides like a pie)

systematics

study of the classification and phylogeny of organisms

clade

organisms that have single common ancestor and all of it’s descendants.

synapomorphies

characteristics that have passed down within a group since it diverged from a common ancestor

species

group of organisms that are related in nature and can produce fertile offspring

phylogeny

the representation of the evolutionary history and relationships between groups of organisms

taxon

group of 1 or more populations of an organism(s) that form a unit