A dichotomous key is a tool used by scientists to identify and classify organisms based on their physical characteristics. It consists of a series of questions that can be answered with a yes or no response, leading the user to a specific identification of the organism.
Three domains of life:
1. Bacteria: Domain consisting of unicellular prokaryotic organisms, many of which are capable of causing disease in humans.
2. Archaea: Domain consisting of unicellular prokaryotic organisms that are often found in extreme environments such as hot springs and deep-sea hydrothermal vents.
3. Eukarya: Domain consisting of organisms with eukaryotic cells, including plants, animals, fungi, and protists.
My organism is in the genus ______ and species __________.
An organism that is in genus _________ but not in species _________ is _____________.
My organism is in the family ___________ and genus __________.
An organism that is in family __________ but not in genus _________ is _____________.
My organism is in the order ___________ and family __________.
An organism that is in order __________ but not in family _________ is ______________.
My organism is in the class ___________ and family __________.
An organism that is in class ___________ but not in family _________ is ______________.
My organism is in the phylum ___________ and class __________.
An organism that is in phylum ___________ but not in class _________ is ______________.
My organism is in the kingdom ___________ and phylum __________.
An organism that is in kingdom ___________ but not in phylum _________ is _____________.
What is a dichotomous key and how is it used to classify organisms?
Name and define the three domains of life
1.
2.
3.
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