Summative Assessment Short Answer

1. For Darwin the fact that Humans and Chimpanzees share so many similarities means that

1. That they must have evolved in different parts of the world at the same time.
2. That humans came from chimpanzees as a result of natural selection favoring greater intelligence
3. That humans and chimpanzees share a common ancestor

2. Read each of the events below. Then place the letter that corresponds to each event in the order in which it occurred during the development of the Theory of Evolution. Use the timeline below with the oldest event on the left and the most recent on the right.

1. Mutations in the DNA lead to trait differences and can be inherited
2. Fossils are the preserved remains of animals that are no longer alive
3. Theory that life changed in response to the environment and that the mechanism was use and disuse. If an organism uses a part of its body then they enlarge and they pass that trait change to the next generation.
4. Theory that life changed over time and that the mechanism was natural selection where those in the population.

3. Identify one researcher whose work has shaped the development of the theory of evolution. Describe the approximate date of their research and how they contributed to the theory.
   _______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
   

True or False

4. The Theory of Evolution is still being added to today. True / False

5. Theories cannot be changed because they are the same as a fact. True / False
   
6. One person’s research can be responsible for creating a scientific theory. True / False

7. A scientific theory can be used to make predictions about things that are not observed. True / False

8. A Scientific theory is best described as __________________________

1. an educated guess about the way that something in biology works.
2. an idea that unites many different pieces of scientific evidence.
3. One persons idea based on their own experience and observations.
4. The idea that living things are made of cells, and evolve.

9. Evolution is _____________________________________________________________.

10. In order for evolution to occur you need to have _____________, ______________________, and _______________________.
    
11. The original source of variation in a population is…

1. Differences in climate
2. Differences in the selective pressures on the population
3. Competition for resources within the population
4. Mutations in the DNA

12. List 2 pieces of evidence that demonstrates evolutionary change by natural selection.
    

________________________         ______________________

13. A bat is more closely related to a human than to a bird but the wings of a bird and a bat look similar. Which best explains why this is true?

1. Humans have changed more over time than bats and birds
2. Bats and birds have a more recent common ancestor than humans and whales do
3. Bats and birds both live in similar environments and have similar selective pressures acting upon them
4. The fossil record does not explain this

14. List the 4 four general components that are present when Natural Selection causes evolution within a population.

1. ___________________________________________________________________________________
2. ____________________________________________________________________________________________
3. _____________________________________________________________________________________________
4. _____________________________________________________________________________________________

15. On the diagram above circle the common ancestor of Mice (Mus musculus) and Frogs (Xenopus laevis)

16. List the three things that cause Speciation.

1.  ____________________________________________________________________________________________
2. ____________________________________________________________________________________________

17.  What is the Result of speciation?