Classification of Living Things

The taxonomic classification system was developed by:

• Charles Darwin

• Gregor Mendel

• Carl Linnaeus

How many levels are there in the Linnaean classification system?

• 5

• 6

• 8

Why is the taxonomic system often represented as a triangle?

• It shows the hierarchical arrangement of classes.

• It shows levels becoming broader at the bottom.

• It shows a balanced structure.

Which of the following is the correct order of the eight taxonomic ranks?

• Kingdom, Phylum, Order, Class, Domain, Genus, Family, Species

• Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species

• Genus, Species, Domain, Kingdom, Phylum, Class, Order, Family

Organisms in the domain Eukarya are different from those in the domain Bacteria because they:

• Can live in extreme conditions

• Have cells with nuclei

• Have no cellular structure

Foxes belong to which domain?

• Bacteria

• Eukarya

• Archaea

Foxes belong to which kingdom?

• Animalia

• Plantae

• Protista

Why are foxes placed in the phylum Chordata?

• They have specialized teeth.

• They have a spinal cord.

• They belong to the dog family.

• They lack a nucleus.

Which of the following features classifies foxes under the class Mammalia?

• They have an exoskeleton.

• They provide milk to their young.

• They are cold-blooded.

• They have feathers.

The order Carnivora is characterized by:

• The presence of a spinal cord

• Specialized teeth for eating other vertebrates

• Feeding only on plants

• Having multiple stomach chambers