Science 7B- Sample Work

Question

Unit 7- Classifications
Pick an organism (I chose grass)
What is its common name? ___________
What is its scientific name? ___________
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

Answer 1

A dichotomous key is a tool used by scientists to classify organisms based on their characteristics. It is a series of paired statements that guide the user to determine the identity of an unknown organism. By answering yes or no to each statement, the user can follow the key's path to ultimately classify the organism into a specific group or category. Dichotomous keys are helpful in organizing and identifying various species in the natural world.