Evolution, Part 2 Test Review

The differences shown among the various kinds of giraffes is known as ___.

• adaptability
• fitness
• variation
• natural selection

Based on the diagram shown, which statement is correct?

• Chimps evolved directly from mice.
• Salamanders and lizards both have lungs.
• Hagfish have jaws.
• Lizards and pigeons both have fur and mammary glands.

In the Galapagos, dome-shelled tortoises and saddleback tortoises evolved differently because they were separated from one another. This is an example of ___.

• speciation
• convergent evolution
• vestigial structure
• higher mutation rates in the saddleback tortoises

Galapagos finches with large, heavy beaks became that way because ___.

• being able to crack open large nuts was a survival advantage
• larger beaks look better than smaller beaks
• they wanted to have heavier beaks
• female birds didn't like the looks of smaller beaked birds

In the diagram, which organism has four limbs but not amniotic eggs or hair?

• sharks
• primates
• frogs
• ray-finned fish

In the diagram, which trait separates crocodiles from rabbits?

• eggs with shells
• amniotic eggs
• four limbs
• hair

The coat color of rock pocket mice in New Mexico's Valley of Fire changed over time from light to dark color. This was because ___.

• individual mice decided to change their coat color to avoid detection
• the lighter colored mice blended in better with the lava rock
• the darker colored mice were more likely to pass on their genes
• of industrial melanism

In classifying organisms, a chart can be used which has yes or no questions to answer in order to determine which organism it is. This kind of chart is called a/an ___.

• dichotomous key
• cladogram
• clade
• binomial graph

Based on the DNA information shown, the "unknown species" is most closely related to which other species?

• Species I
• Species II
• Species III
• Species IV

T/F:  Natural selection drives evolution.

• True
• False