Science Grade 8 Living Things --Classifying Organisms

How many levels do biologists classify organisms into?

8 levels

Who was the British scientist that published a theory about how species can change over time--Theory of Evolution?

Charles Darwin

What is the broadest level in the 8 level classification system?

Domain

List the 8 levels of the classification system?

Domain, kingdoms, phylum, classes, orders families, genus, species

What is a way to remember the list in the classification system?

Kings play cards on fat green stools

What is the relationship between classification and evolution?

Species with similar evolutionary histories are classified more closely together

How did Aristotle divide the organisms in the classification system that he developed?

Three Groups: those that fly, those that swim, those that walk, run, or crawl

Who was Carolus Linnaeus?

a Swedish scientist who created a naming system for organisms called Binomial Nomenclature

genus

a classification grouping that contains similar, closely related organisms

species

a group of similar organism's that can mate and produce offspring that can also mate and reproduce

taxonomic keys

a series of paired statements that describe the physical characteristics of different organisms

What is binomial nomenclature?

a system in which the organism is given a 2 part name--the first part being the genus and the second part being the species

field guides

books with illustrations that highlight the differences between similar looking organisms.

How can scientists get information about the evolutionary history of species?

by examining the chemical makeup of the organism's cells

The more classification levels that 2 organisms share, the more ______ they have in common.

characteristics

What is the name of the second part of an organism's scientific name? This sets each species apart from one another in the genus

species

What are 2 tools that can help you identify organisms?

taxonomic keys and field guides

Aristotle

the first scientist to develop a classification system for organisms He was a Greek scholar.

classification

the process of grouping things based on their similarities--used by biologists to organize living things into groups so that the organisms are easier to study.

taxonomy

the scientific study of how living things are classified

Why do biologists organize living things into groups?

to make the organisms easier to study