Vocab
Speciation
How a species is able to become its own
Light and Dark Beetles are found on a lighter colored tree. Which color would be most likely to survive the predators?
Light
As humans have tamed horses, and used them for working purposed we have seen them change over time for our needs. What word best describes this?
Gradualism
Which combination of characteristics in a population would provide the greatest potential for evolutionary change?
Small, many mutations
Which is the definition of evolution?
The slow gradual change of a species over time
Punctuated Equilibrium vs. Gradualism
P.E. Small bursts of change, long period of nothing
Grad. Small changes over time
Carpenter Lore: What college did I graduate from?
Tarleton State
The salamanders of the genus Ambystoma in northeastern North America are an entirely female population that reproduces asexually through the process of cloning. However, they have developed a way of inserting DNA from other species of salamanders into their own DNA. How has DNA from other salamander species helped these Ambystoma salamanders survive environmental changes over the past 6 million years?
Increasing genetic variance
During the Industrial Revolution in England, burning coal increased the soot level in the air, and the soot darkened the tree bark. As a result, the population of dark-colored peppered moths significantly increased.
Which statement describes the MOST LIKELY reason why the population of dark-colored peppered moths increased?
The dark colors are better camouflage
Carpenter Lore: What would be my career if I was not a teacher?
Vestigial
Body part that is no longer used
When looking at fossil records a student notices that there was a sudden shift from small shells to big shells, what would explain this shift?
There was a sudden change that favored those with big shells.
(Punctuated Equil.)
Carpenter Lore: What year was I born?
2000
Farmers spray pesticides on their plants to protect the plants from being eaten by insects. Some individual insects have a genetic mutation that makes them resistant to the toxins in the pesticides.
Which statement best describes how only a few resistant individuals resulted in the pesticide becoming ineffective?
The resistant insects were able to survive and reproduce
Whales, humans, and horses all have common ancestry, how?
Similar bone structure
Analogous
Different structure, same function
Why are we able to see variations of the same species? (Think about a word that would explain how this could happen)
Mutations
African cheetahs suffered a dramatic drop in population then rebounded in number to create a population of unusually similar genetic animals. What is this phenomenon called, and what evolutionary mechanism is it an example of?
Bottleneck and genetic drift
Which of the following organisms is most successful in evolutionary terms?
Leaving behind the most offspring
A new predator of rabbits has been introduced within an ecosystem. This new predator runs faster than the native predators of rabbits.
Which statement describes what will most likely occur in the rabbit population due to the introduction of the predator?
The fastest rabbits survive and reproduce, increase the average speed
Homologous
Same structure, different function
Niles Eldredge and Stephen Jay Gould researched the lenses of the eyes of fossil trilobites of different species. In 1972 they published a paper in which they described the tendency of a species to remain the same until a sudden change in the environment causes a new related species to appear.
Which hypothesis was most challenged by the work of Eldredge and Gould?
The hypothesis of gradualism.
(He is explaining punctuated equilibrium)
Florida Panther populations have declined a lot due over hunting. To help bring the population numbers up female Texas pumas were introduced. This was successful in bringing up the population numbers and increased genetic variation.
What event explains the arrival of the Texas pumas
Gene Flow
Carpenter Lore: What is my favorite clothing brand
Penguin Outfitters
Give at least 1 example evolution
Results may vary