Adaptation | Natural Selection | Fossils | Species |
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True
True or False: Niche is the role an animals play in the environment.
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Newly formed canyon
mountain range lake can divide
How can the process of speciation occur?
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True
True or False: Since life first appeared on Earth, many species have died out and many new species have appeared.
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Separated
Speciation often begins when a part of a population becomes __________ from the rest.
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What is adaptation
A characteristic that helps an organism survive and reproduce in its environment is called an _____________.
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Speciation
The formation of a new species as a result of evolution is called __________.
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Generation time
_________ is the average time between one generation and the next.
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Selective Breeding
The process in which humans select which plants or animals to reproduce based on certain desired traits is called ______________.
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All organisms may have descended from a common ancestor
The fact that all organisms have DNA as their genetic material is evidence that ____.
1. all organisms undergo natural selection 2. all organisms may have descended from a common ancestor 3. selective breeding takes place everyday |
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Natural Selection
___________________ is the process by which organism that are better adapted to their environment survive and reproduce more successfully than less well adapted organisms
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Naturalist
A _________ is a scientist who study’s natures.
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What is Species
Living things that have the same characteristic may be members of the same _______.
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Alfred Russel Wallace
Who had the same ideas about evolution as Darwin did?
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Trait
A _______ is a characteristic that can be passed from parent to offspring through genes.
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Charles Darwin
Who was the first person to explain how evolution happened.
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1. overpopulation
2. inherited variation 3. struggle to survive 4. successful reproduction
What are the 4 parts of natural selection?
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A population of bacteria might develop an adaption through natural selection. Most bacteria are killed by the chemicals in antibiotics. But a few of the bacteria have an adaption that makes them naturally resistant to, or not killed by, the antibiotics is
Antibiotic are supposed to kill bacteria. But sometimes bacteria are not killed by the medicine. Why?
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when the population can not longer interbreed and produce fertile offspring
A population of organism is separated into two groups for many years. When would the two populations be considered two different species?
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