Classification and Dichotomous Keys

What is the purpose of a dichotomous key?

• The purpose of a dichotomous key is to measure the temperature of an environment.

• The purpose of a dichotomous key is to identify and classify organisms.

• The purpose of a dichotomous key is to predict the weather patterns.

• The purpose of a dichotomous key is to determine the age of fossils.

Which of the following is an example of a dichotomous key?

• A key used to identify plants based on their leaf characteristics.

• A key used to identify planets based on their distance from the sun.

• A key used to identify animals based on their fur color.

• A key used to identify rocks based on their texture.

True or False: Dichotomous keys are used to classify organisms into groups based on their similarities and differences.

• True

• True, dichotomous keys are used to classify emotions

• False, dichotomous keys are used to classify rocks

• False, dichotomous keys are used to classify the weather

What is the first step in using a dichotomous key to identify an organism?

• Ask an expert for help in identifying the organism.

• Observe and gather information about the organism's characteristics.

• Look up the organism in a field guide.

• Take a photograph of the organism.

Which of the following is an example of a characteristic used in a dichotomous key?

• Shape

• Distinguishing feature or trait

• Size

• Color

True or False: Dichotomous keys can only be used to classify plants.

• Dichotomous keys can only be used to classify minerals

• Dichotomous keys can only be used to classify animals

• True

• False

What is the purpose of classifying organisms?

• To confuse scientists

• To waste time and resources

• To create a hierarchy of superiority among organisms

• The purpose of classifying organisms is to organize and understand the diversity of living things.

Which of the following is NOT a kingdom in the classification system?

• Fungi

• Planet

• Bacteria

• Animal

True or False: Organisms in the same genus are more closely related than organisms in the same family.

• Organisms in the same genus and family are not related

• False

• It depends on the specific organisms being compared

• True

Tags

NGSS.MS-LS4-2

What is the highest level of classification in the Linnaean system?

• Genus

• Kingdom

• Species

• Phylum