Classification

All prokaryotes reproduce asexually, while many eukaryotes can reproduce sexually. Given this information, which statement best explains why the Eukarya domain includes more complex living things than the Archaea or Bacteria domains?  

• Prokaryotes can live in more extreme conditions than eukaryotes.
• All prokaryotes are unicellular, and all eukaryotes are multicellular
• Eukaryotes have a greater variety of genetic material than prokaryotes.
• There are more eukaryotic organisms than prokaryotic organisms in the world.

In 1990, Carl Woese introduced the three domain system for classifying living things, after the advancement of DNA analysis allowed for a comparison of species genetic code. Which of the following is the best explanation for why domains were added to the previous system of classification? 

• Some organisms, which were previously characterized together, were determined to be genetically very different.
• New species are evolving too quickly to keep up with the old system of classification.
• Domains have always been included, they were just made official recently. 
• The old system of classification was wrong and needed to be corrected 

Organisms are classified into kingdoms based on their defining characteristics. Which of the following statements correctly compares the animal and plant kingdoms?

• Animal give off oxygen; plants give off carbon dioxide.
• Animal cells lack a cell wall; plant cells have a cell wall.
• Animal cells have chromosomes; plant cells do not.
• Animal cells are eukaryotic; plant cells are prokaryotic.

Which of the following best describes the characteristics that differentiate animals from the organisms of other kingdoms? 

• Animals have rigid cell walls and specialized tissues. 
• Animals have eukaryotic cells and are multicellular.
• Animals have complex organ systems and reproduce sexually.
• Animals have external digestion and are vertebrates.

Which of the following best describes a characteristic that distinguishes Fungi from other kingdoms? 

• Fungi have cell walls and specialized tissues
• Fungi are multicellular and break down dead plant and animal matter.
• Fungi are able to reproduce both sexually and asexually
• Fungi are eukaryotes with complex organ systems. 

Which kingdoms have photosynthetic organisms? 

• protists and plants
• plants and animals
• fungi and protists
• fungi and plants

Some organisms are multicellular, sessile (non-moving), and able to create their own food. What biological kingdom do these organisms belong to?

• Bacteria
• Plant
• Fungi
• Animals

The list below describes an organism.   Characteristics of an Organism
 
• Unicellular
 • Prokaryotic
• Lives in very harsh environments  
 Based on this list, in which kingdom should the organism be classified?

• Protista
• Fungi
• Archaebacterial
• Animal