Classification and kingdoms of life

A researcher is studying a particular disease-causing agent. The agent has a protein coat, but it lacks a nucleus, contains no other organelles, and can reproduce only when it is inside an animal cell.

The researcher should classify the agent as which of the following?

• a virus

• a protist

• a fungus

• a bacterium

Which of the following organsisms is eukaryotic, multicellular, and autotrophic?

• 
• 
• 
• 

Which of the following statements is correct about the hierarchy of the taxonomic system currently used to classify organisms?

• All organisms of a given order belong to the same species.

• Many different classes of organisms belonging to the same order.

• All organisms of a given phylum belong to the same kingdom.

• Many different families of organisms belong to the same genus.

The scientific name for the woodchuck is Marmota monax, and the scientific name for the long-tailed marmot is Marmota caudata. Which of the following statements describes the taxonomic relationship between the woodchuck and the long-tailed marmot?

• They belong to different phyla.

• They belong to the same genus.

• They belong to the same species.

• They belong to different families.

An organism is eukaryotic, multicellular, heterotrophic, and has a cell wall. To which kingdom does it belong?

• Animal

• Fungi

• Plant

• Protist

Which of the following are prokaryotes that contain peptidoglycan in their cell walls?

• Archaebacteria

• Eubacteria

• Fungi

• Protista

Which domain includes organisms that are called extremophiles?

• Animalia

• Archaea

• Bacteria

• Eubacteria

Which character distinguishes Fungi from Plantae?

• presence of membrane-bound organelles

• presence of membrane-bound nucleus

• cell walls with chitin

• multicellular

Multicellular eukaryotes that are usually mobile and obtain food from other organisms probably belong to the kingdom _____.

• Plantae

• Fungi

• Animalia

• Protista

Dr. Bennett is a physician. One of his patients presents with a high fever and muscle aches. After examining the patient, Dr. Bennett diagnoses the patient with influenza.

Influenza is caused by a ______, which contains genetics information but cannot reproduce independently and is not considered to be a living organism.

• Yeast

• Virus

• Fungus

• Bacterium