Basic Taxonomy Flashcards
systematic arrangement of similar entities on the basis of similar certain differing characteristics and the basis of their relationships
classification
organizing things in orderly condition
systematic arrangement
system of names used in a particular discipline
nomenclature
presupposes the existence of organized classification of entities within the field
standard system of nomenclature
serves as a tool that allows the user to determine the identity of organisms
dichotomous key
consists of couplet statements that lead to the identification of the organisms’ identity
dichotomous key
to start classifying the organisms, start with these
basic attributes/characteristics
biological system of classification, a system of naming organisms
nomenclature
nomenclature is also called
Linnean system of binomial nomenclature
who established nomenclature
Carolus Linnaeus
when did Carolus Linnaeus establish nomenclature
1750s
tool that allow the users to determine the identity of the items in the natural world such as trees, wildflowers, mammals, reptiles, rocks, and fish
dichotomous key
meaning of dichotomous
divided into two parts
also known as identification key used to correctly assign living organisms on specific groups
dichotomous key
uses characterization that provides two options at each juncture which continues to the next step
dichotomous key
three main types of dichotomous keys in use:
-yoked or idented key
-bracketed or parallel key
-serial or numbered key
one of the most commonly used dichotomous keys in Floras and Manuals especially when keys are smaller in size
yoked or indented key
what type of key:
statement (leads) and the taxa identified from them are arranged in visual groups or yokes
yoked or indented key
the subordinate couplets are idented below the primary one at a fixed distance from the margin, the distance increasing with each subordinate couplet
yoked or idented key
has been used in larger floras such as the Flora of the USSR, Plants of Central Asia and Flora of Manila
bracketed or parallel key
two leads of a couplet are always together and the distance from the margin is always the same
bracketed or parallel key
used for the identification of animals and adopted in some volumes of Flora of USSR
serial or numbered key
retains arrangements of the Yoked key, but with no identation so that the distance from the margin remains the same
serial or numbered key
location of alternate leads is made possibly by serial numbering of couplets (or leads when separated) and indicating the serial number of the alternate lead within parentheses
serial or numbered key
keys should be strictly ______, consisting of couplets with only ____possible choices
dichotomous, two
mutually exclusive, so that the acceptance of one should automatically lead to the _____ of another
rejection
the statements of leads should not be _____
overlapping
the two leads of a couplet should start with the _____
same initial word
the leads of two successive couplets should _____ with the same initial word
not start
avoid usage of ____ statements
vague
an initial couplet should be selected in such a way that it divides the group into more or less ____, and the character is easily available for study
equal halves
the leads should be prefixed by ____ This makes location of leads easier. If left blank
numbers/letters
altissimus
very tall, high
altissimus
very tall; high
amabilis
lovely
lovely
amabilis
angustatus
narrow;slender
narrow; slender
angustatus
abnormal; unlike its kind
anomalus
anomalus
abnormal; unlike its kind
silvery
argenteus, argyraeus
argenteus, argyraeus
silvery
