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Evolution
| Question | Answer |
|---|---|
| What did scientists not know in the time period? | how DNA or genes worked |
| What scientists influenced Darwin's work? | Lamark,Charles Lyell & Tomas Malthus |
| What were Lamarks beliefs on the subject? | stated that changes are adaptations to the environmental made in an organism's lifetime. He also said these changes were passed to the offspring. |
| What was an idea that was brought up first by Lamark? | that change happens over time |
| What was the name of Lamark's theory involving evolution? | Law of use and disuse |
| What's the law of use and disuse? | the idea that if a body part gets used it's stronger and if it is not used - it deteriorates. These changes are passed onto the offspring. Overtime,this wouldnt lead to new organisms |
| What was Lamarks reasoning behind the law of use and disuse? | Lamark made this note because he saw other species throw away adaptations that they didn't have a use for. |
| What were the flaws in Lamaerk's thinking? | He didn't know that traits where inherited by genes. Physical activities don't change genes. Also, change through mutations occur before an organism is born. |
| What did Charles Lyell do? | propose the theory of uniformitarianism & said the earth was millions of years old opposed to a few thousand. |
| What is uniformitarianism? | The idea that Earth's changes happen at a the same rate and eventually can cause great changes.For example, eriosion slowly cause the Grand Canyon to form. |
| Who is Tomas Malthus? | A scientist who believed that population rates were affected by environmental factors such as food supply and disease. He also published a book called Essay On Principle of Population. |
| What was the title of Charles Darwin's beliefs? | Theory of Evolution by Natural Selection |
| What did Darwin do? | he studied and compared fossils and living organisms with different species and populations. |
| Define Species. | a group of organisms that are closely related & naturally mate to produce fertile offspring. |
| Define Population. | a group of organisms of the same species that live in a specific geographical area and interbreed. |
| Define Evolution | A slow gradual change in genetic makeup of a population of an organisms over generations |
| Define Adaptation | an inherited trait that increases an organism's ability to survive and reproduce in a particular environment. |
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alexistaylorai
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