Biology Review (Taxonomy & Cladograms)

Why do scientists use scientific names and a standardized taxonomic system?

• Because it helps to research species.

• Because it helps to avoid confusing species.

• Because it makes it easier to classify species.

• Because it make it easier to find species.

Every species is classified into different categories, such as the domain, kingdom, phylum, etc., based on

• their gender

• relationship with predators and prey

• their parasites

• genetic similarities and common ancestry

Which group of animals on this tree are most closely related to birds?

• Saurischian dinosaurs

• Ornithischian dinosaurs

• Crocodiles

• None of these are related to birds

According to this tree, which of these animal phyla are most closely related?

• Arthropoda & Mollusca

• Arthropoda & Chordata

• Chordata & Mollusca

Where is the alligator and T. rex's common ancestor?

• Point A
• Point B
• Point C
• Point D

According to this image, which two domains of life are most related?

• Bacteria & Archaea

• Archaea & Eukarya

• Eukarya & Bacteria

What is this a picture of?

• Pedigree
• Cladogram
• Family Tree
• Oak Tree

Feature shared by two or more organisms because they are descended from a common ancestor.

• Homology
• Synapomorphy
• Symplesiomorphy
• Homoplasy

Which of the following organisms are LEAST closely related?

• organisms that share a domain
• organisms that share a family 
• organisms that share a genus 
• organisms that share a species 

The scientific name for an organism is made from the:

• class and family name
• genus and species name
• domain and kingdom name
• kingdom and phylum name