Lifescience Test- Evolution:  Survival due to Natural Selection.      

  Part I.   Multiple Choice:          

1.   All living things have certain                            or traits which help them to survive:

         a.    impressions                     c.    adaptations

        b.   regulations                      d.    conditions

2.   The process which determines which species will survive its surroundings is called:               

                                               a.    Newton's  laws               c.    adaptations    

                                               b.    natural  selection             d.   natural elimination

3.   In our owl and mice story, which of the following did the selecting?

                                               a.    owl                                  c.    soil

                                               b.    mice                                d.    sun

4.   Traits which help living things survive are controlled by which of the following?

                                               a.    environment                     c.    nature

                                               b.    predators                        d.    genes

5.   Many new traits in living things come from which of the following?

                                               a.    cell reproduction              c.    genetic combinations

                                               b.    genetic mutations             d.   breaking down of DNA

6.   A change in the DNA code of any living thing is a:

                                               a.    mutation                           c.    reproduction

                                               b.    cell division                      d.    genetic selection

7.   Genetic mutations:  

                                               a.    are helpful                        c.    have no effect at all

                                               b.    are harmful                      d.    are all three(a,b,c)

 

8.   Mutations are natural events which occur:

                                               a.    only occasionally              c.    all the time

                                               b.    about 50% of the time    d.   almost never 

 

 

Part II.   True or False: True False
9.   All living things have adaptations to help them survive.    
10. Dark mice in dark soil are better adapted to their envirnment because they blend in.    
11. The process which determines which species will survive in its surroundings is called acquired characteristics.    
12. In the owl and mice story, the mice did the selecting.    
13. Adaptations are traits which are controlled by genes.    
14. Many new traits come from genetic mutations.    
15. A mutation is a change in a living thing's DNA code.    
16. A genetic mutation is always harmful.    
17. Mutations are natural events which occur all the time.    
18. Mutations can supply organisms with sources of new traits.    
19. Mutations can be helpful, harmful, or have no effect at all.    
20. A white deer has a better chance of surviving with dark surroundings than a brown deer.    

Part III. Matching.  The words adaptations and mutations are used more than once.

21. Another name for traits.                                                             A.    Mutations

22. What traits are controlled by.                                                     B.    Traits

23. Changes in the DNA code.                                                        C.    DNA code

24. The process which determines which species                              D.    Adaptations

      will survive.                                                                                E.    Natural selection

25. Mutations can supply organisms with new sources of these.         F.   Genes

26. Many new traits come from these.                                              

27. These enable organisms to survive and reproduce.

28. These can supply organisms with sources of new traits.

29.  Mutations cause a change in this.

Part IV.  Open response question:

                Which type of mouse would survive  better in a dark environment ; a white mouse or a gray mouse ? Explain your answer by using terms such as "adaptation" and "natural selection".

 

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