Evidence of Evolution and Extinction

A type of speciation caused by geographic barriers separating populations that once shared a gene pool

• Sympatric

• Allopatric

• Chemical

• Temporal

Some organisms that share a common ancestor have features that have different functions, but similar structures.  These are known as

• vestigial structures
• analogous structures
• homologous structures
• fossil structures

Humans, birds, whales, and lizards all have similar arm bones. What is the reason for this?

• The function of these bones is the same in all animals
• They live in similar environments
• They have a common ancestor
• All organisms resemble humans

The 3 domains are Eukarya, Archaea, and

• Fungi

• Plantae

• Animalia

• Bacteria

What type of isolation has occurred in the image?

• Geographic isolation

• Temporal isolation

• Behavioral isolation

What do we call a group of individuals that can reproduce successfully in nature?

• species

• order

• speciation

Penguin flipper and fish fin

• Homologous

• Vestigial

• Analogous

• None of the above

An example of a homologous structure 

• human arm and bird wing
• rat appendix  and human appendix
• wing of butterfly and bird wing

Who came up with binomial nomenclature?

• Aristotle
• Mendel
• Watson
• Linneaus

The 2-part naming system developed by Linneus is known as:

• Dichotomous key

• Binomial nomenclature

• Taxonomy

• Classification