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Biology H-Mr.Willets
Evolution
Pg 261-263
1) Define spontaneous generation and biogenesis.
2) Describe Redi's experiment showing that flies come from flies.
3) What did Spallanzani's critics say was wrong with his experiment?
4) Describe Pasteur's flasks and how they prevented bacteria from growing in the broth.
Pg 266-267
5) Oparin assumed what 4 gases were present in the early atmosphere? How do the elements in these gases compare to the elements needed to make most organic molecules?
6) A more recent theory says the early atmosphere contained what three gases? This might indicate that early organic molecules formed not at the surface, but rather, where?
7) Another theory says that organic molecules arrived from where?
Pg 270-272
8) The first organisms were autotrophs or heterotrophs? The first autotrophs used what process?
9) What major change did photosynthesis bring to the earth? How did organisms respond to this change?
This response was mostly for protection but it had another advantage-what?
10) What other effect did oxygen in the air have on the earth's environment?
11) How did the first eukaryotic cells arise. What did the"inside" cells eventually become? What is this theory called?
Pg 279-280
12) In what type of rock are most fossils found? Why?
13) What does the Law of Superposition say?
Pg 283-284
14) Describe Lamarck's theory of "inheritance of acquired characteristics"? Knowing what you do about genetics and reproduction, explain why his theory is not valid.
15) What is "natural selection?"
pg 289-291
16) What are some of the types of evidence that support the theory of evolution.
pg 291-292
17) Define coevolution and give an example.
18) Define convergent and divergent evolution and give examples of each.
19) What is artificial selection?
Pg 299
20) Read about the bell curve
Pg 306-307
21) Describe stabilizing selection, direction selection and disruptive selection using an example from each.
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