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3
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100
The sequence of life's history is indicated by
Fossil Records
100
A characteristic that improves an organism's ability to survive
Adaptation
100
A group of organisms that can mate to produce offspring
Species
100
The remains or imprint of an organism
Fossil
100
A form of a hereditary characteristic
Trait
200
Process in which humans select plants or animals for breeding based on certain desired traits
Selective Breeding
200
Process by which individuals that are better adapted to survive and reproduce more successfully than individuals that are not as well adapted
Natural Selection
200
The formation of a new species as the result of change over time
Speciation
200
The average time between the birth of one generation and the birth of the next generation
Generation Time
200
Two groups becoming so different that they may no longer interbreed
Division
300
A naturalist who proposed that change over time happens through natural selection
Charles Darwin
300
Modern knowledge that helps explain Darwin's theory
Genetics
300
What is a likely reason that two organisms share similar DNA and similar traits
Common ancestor
300
What can fossils reveal about organisms in an environment?
how the organisms changed over time.
300
What structural change occurred among the finches that helped them adapt to their environment?
Change in beak size and shape
400
How is insecticide resistance a survival characteristic?
Insects with the trait of insecticide resistance are more likely to survive long enough to pass this trait on to the next generation.
400
How can parts of a population become separated?
Newly formed canyons, mountain range, or lake could separate the members of a population
400
Where are the Galapagos Islands?
West of Ecuador
400
What are the 3 parts of Speciation?
1. Separation 2. Adaptation 3. Division
400
What evidence of natural selection is available today that was not available to Darwin?
Difference in genes create variation
500
Populations are limited by what 4 factors?
1. Starvation 2. Disease 3. Competition 4. Predation
500
Why can many insects adapt very quickly to insecticides?
Because the insect's generation time is short
500
What are two signs that different species may have a common ancestor?
1. Similar DNA 2. Smilar Traits
500
List the 4 parts of Natural Selection
1. Overproduction 2. Inherited Variation 3. Struggle to Survive 4. Successful Reproduction
500
What causes variations in a population?
Differences in genes.
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