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| 1 | |
What is meant by the term spontaneous generation? |
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| 2 | |
What is meant by the term biogenesis? |
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| 3 | |
Describe the contribution of each of the following scientists to the biogenesis/spontaneous generation debate: Redi Needham, Spallanzani, and Pasteur. |
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| 4 | |
Provide two kinds of evidence that support the idea that life could have originated on Earth. |
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| 5 | |
Provide two kinds of evidence that support the idea that life could have arrived on Earth from space. |
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| 6 | |
How did the atmosphere, the temperature, and the surface of the newly formed Earth differ from what exists today? |
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| 7 | |
What is the approximate age of the Earth? |
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| 8 | |
List two kinds of evidence that suggest that organic molecules could have formed before there were living things. |
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| 9 | |
List two kinds of evidence that suggest that RNA was the first genetic material. |
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| 10 | |
Describe two models that suggest how collections of organic molecules could have been segregated from other molecules. |
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| 11 | |
Why must the first organism on Earth have been anaerobic? |
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| 12 | |
How do heterotrophs and chemoautotrophs differ in how they obtain organic molecules? |
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| 13 | |
What organisms were probably responsible for the development of an oxygen-containing atmosphere? |
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| 14 | |
What evidence supports the theory that eukaryotic cells arose from the development of an endosymbiotic relationship between primitive prokaryotic cells? |
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| 15 | |
Why is it unlikely that organic molecules would accumulate in the oceans today? |
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| 16 | |
List two significant biologically important effects caused by the increase of oxygen in Earth's atmosphere. |
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| 17 | |
In what sequence did the following things happen: living cell, oxidizing atmosphere, respiration, photosynthesis, reducing atmosphere, first organic molecule? |
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| 18 | |
List 2 distinguishing characteristics of each of the following domains: Bacteria, Archaea, and Eucarya. |
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| 19 | |
Describe 4 problems organisms had to overcome to be successful on land. |
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| 20 | |
For each of the following pairs of terms, select the one that is the earliest in geologic time.
a. eukaryote—prokaryote
b. marine—terrestrial
c. vertebrate—invertebrate
d. flowering plant—cone-bearing plant
e. aerobic respiration—photosynthesis
f. plants—animals
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