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What are the five fundamental characteristics of life? |
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Definition
Energy, cells, Information, Replication, Evolution |
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Term
What was the theory that came before the cell theory? |
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Definition
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Who performed the experiment to disprove spontaneous generation and to support the all-cells-from -cells hypothesis? |
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Definition
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Term
In order for natural selection to occur, what two conditions must be met? |
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Definition
The trait must be heritable and the trait must help the individual survive and reproduce (pass on their genetic information) |
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Term
All species are related by _______ _________ and have changed over time as in response to _________ __________. |
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Definition
common ancestry; natural selection |
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Term
How can you tell if two organisms are closely related to one another? |
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Definition
by looking at the rRNA sequences |
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Term
What are the three fundamental lineages of organisms? |
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Definition
bacteria, archae, and Eukarya |
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Term
Who came up with the two part naming system of organisms that we use today? |
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Definition
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Term
Can a hypothesis ever be proven true? |
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Definition
No, it can only be supported or disproved |
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Term
How many factors can scientists test at once in an experiment? |
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Definition
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Term
A good scientific theory must make predictions that are_________. |
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Definition
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Term
What are several characteristics of a good experimental design? |
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Definition
A control group, unchanging conditions, repeatability, etc. |
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Term
Pasteur's results showed that _____. |
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Definition
when growth medium is not contaminated by preexisting cells, the growth medium remains sterile |
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Term
Natural selection acts only on traits that are _____. |
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Definition
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Term
What is the relationship between Bacteria, Archaea, and Eukarya? |
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Definition
These groups are descendants of a single common ancestor cell |
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Term
The role of controls in scientific experiments is to _____, |
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Definition
test for factors other than the one being investigated that might influence the outcome of the experiment |
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Term
What domains include prokaryotes? |
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Definition
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Term
Taxonomy attempts to describe the _______, or historical relationships, among organisms. |
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Definition
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Term
A null hypothesis in an experiment is _____. |
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Definition
an alternative possibility in the event that the explanation being tested does not apply |
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Term
In order for an experiment to be effective there should be ____ difference(es) between the experimental groups |
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Definition
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