Classification of Organisms Quiz

What is classification?

• Grouping organisms randomly

• Grouping organisms based on their similarities and differences

• Making organisms disappear

• Making organisms evolve

What is the benefit of classification?

• It complicates the study of organisms

• Helps arrange organisms in specific groups

• Removes species from the environment

• Changes DNA of organisms

What is the basis of the Three Domain System?

• Similarities in the DNA sequence of organisms

• Random characteristics

• Only external morphology

• Only environmental adaptations

Which scientist proposed the Three Domain System?

• Darwin

• Linnaeus

• Woese et al.

• Mendel

What is NOT a basis for the Three Domain System?

• Nucleotide sequences of rRNAs

• Cell membrane lipid structure

• Sensitivity to antibiotics

• Skin color

What are the three domains?

• Archaea, Bacteria, Eukarya

• Plants, Animals, Fungi

• Plants, Fungi, Monera

• Plants, Animals, Archaea

Archaea were earlier called ________.

• Archaebacteria

• Plants

• Animals

• Fungi

Archaea can survive in ________ environments.

• Extreme environments

• Only neutral environments

• Only tropical environments

• Only aquatic environments

The lipid composition of Archaea’s cell membranes is ________.

• Branched hydrocarbon chains

• Straight fatty acid chains

• Phospholipids only

• Similar to Bacteria exclusively

Archaea’s rRNAs are ________ from those of Bacteria.

• Identical

• Similar

• Unique and different

• Not applicable