class

Question 1

Classification

Answer 1

Biological classification uses taxonomic ranks, including, among others in order from most inclusive to least inclusive Domain, Kingdom, Phylum, Class, Order, Family, Genus, and Species.

Question 2

Taxonomy

Answer 2

the branch of science concerned with classification, especially of organisms; systematics.

Question 3

Binomial nomenclature:

Answer 3

is a formal system of naming species of living things by giving each a name composed of two parts, both of which use Latin grammatical forms, although they can be based on words from other languages.

Question 4

Taxon

Answer 4

is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit.

Question 5

Genus

Answer 5

is a taxonomic rank used in the biological classification of living and fossil organisms in biology. In the hierarchy of biological classification, genus comes above species and below family.

Question 6

Family

Answer 6

is a taxonomic rank, or a taxon at that rank. Each family contains one or more genera. The next important rank is that of order. Usually, the name of the family ends with a “idae” for animals, and “aceae” for plants.

Question 7

Order

Answer 7

is. a taxonomic rank used in the classification of organisms and recognized by the nomenclature codes. Other well-known ranks are life, domain, kingdom, phylum, class, family, genus, and species, with order fitting in between class and family.

Question 8

class

Answer 8

a taxonomic rank. Other well-known ranks in descending order of size are life, domain, kingdom, phylum, order, family, genus, and species, with class fitting between phylum and order.

Question 9

Phylum

Answer 9

is a taxonomic rank below kingdom and above class. Traditionally, in botany the term division was used instead of phylum

Question 10

Division

Answer 10

one of the largest programs on campus with over 800 undergraduate majors and 65 graduate students enrolled on average every year. Our 55 faculty work to train the next generation of life scientists via our undergraduate and graduate programs.

Question 11

Kingdom

Answer 11

taxonomic category of the highest rank, grouping together all forms of life having certain fundamental characteristics in common: in the five-kingdom classification scheme adopted by many biologists, separate kingdoms are assigned to animals

Question 12

Domain

Answer 12

there are three categories: eukaryotes, bacteria, and archaea. These classifications are very broad, and each of the three categories is broken down into more specific physical characteristics. See Taxonomic Rank.

Question 13

Phylogeny

Answer 13

a hypothesis about the evolutionary history of taxonomic groups. Evolution is a process whereby populations are altered over time and may split into separate branches, hybridize together, or terminate by extinction.

Question 14

Characters

Answer 14

any observable feature, or trait, of an organism, whether acquired or inherited. An acquired character is a response to the environment; an inherited character is produced by genes transmitted from parent to offspring

Question 15

Molecular clock:

Answer 15

is a technique in molecular evolution that uses fossil constraints and rates of molecular change to deduce the time in geologic history when two species or other taxa diverged.

Question 16

Cladistics

Answer 16

is an approach to biological classification in which organisms are categorized based on shared derived characteristics that can be traced to a group’s most recent common ancestor and are not present in more distant ancestors.

Question 17

Cladogram

Answer 17

is a diagram used in cladistics which shows relations among organisms.

Question 18

Archaea

Answer 18

The Archaea constitute a domain or kingdom of single-celled microorganisms. These microbes are prokaryotes, meaning that they have no cell nucleus or any other membrane-bound organelles in their cells.

Question 19

Protists

Answer 19

were a large group of diverse eukaryotic microorganisms, mainly unicellular animals and plants, that do not form tissues.

Question 20

Fungus

Answer 20

A fungus is any member of the group of eukaryotic organisms that includes unicellular microorganisms such as yeasts and molds, as well as multicellular fungi that produce familiar fruiting forms known as mushrooms