science and biology notes, Cheat Sheet of Biology

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2020/2021

Uploaded on 06/08/2021

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Name:_____________________
Evolution 7.2 Notes – Charles Darwin
Read Pages 158-163
Charles Darwin
1. Charles Darwin was a ____________________ who studied nature in the
1830’s
2. He traveled the world on the ___________________(boat) taking notes on
his observations
3. Through his observations, he proposed some theories and principle on how
__________ occurs
The Galapagos Islands
4. Darwin observes differences in _________________(birds) across the
islands
5. The ____________ shapes differed based on what they ate and how
they obtained their foods.
6. The beaks are ___________________ to the different ways the finches
get food
Darwin learns from others
7. _________________ - distinguishing qualities or characteristics in an organism.
8. ________________ ________________ - choosing certain traits considered desirable
(farmers and dog breeders).
9. _______________ - differences among traits, different forms of a trait. (beak shape,
height, etc.)
10. Darwin proposed that organisms could change over much longer periods of time because
the variation would be due to __________________ (changes in nature)
Natural Selection
11. Darwin theorized that evolution occurs through a process he called _______________
___________.
12. This theory supports the idea that the successful organisms have traits that may help them
____________, thus they are more likely to pass down their traits to future generations
(reproduce)
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Name:_____________________ Evolution 7.2 Notes – Charles Darwin Read Pages 158- Charles Darwin

  1. Charles Darwin was a ____________________ who studied nature in the 1830’s
  2. He traveled the world on the ___________________(boat) taking notes on his observations
  3. Through his observations, he proposed some theories and principle on how __________ occurs The Galapagos Islands
  4. Darwin observes differences in _________________(birds) across the islands
  5. The ____________ shapes differed based on what they ate and how they obtained their foods.
  6. The beaks are ___________________ to the different ways the finches get food Darwin learns from others
  7. _________________ - distinguishing qualities or characteristics in an organism.
  8. ________________ ________________ - choosing certain traits considered desirable (farmers and dog breeders).
  9. _______________ - differences among traits, different forms of a trait. (beak shape, height, etc.)
  10. Darwin proposed that organisms could change over much longer periods of time because the variation would be due to __________________ (changes in nature) Natural Selection
  11. Darwin theorized that evolution occurs through a process he called _______________ ___________.
  12. This theory supports the idea that the successful organisms have traits that may help them ____________, thus they are more likely to pass down their traits to future generations (reproduce)

Four Steps in Natural Selection 1_______________ 2_______________ 3_______________ 4_______________ Organisms produce more offspring then can survive Different forms of traits exist and some will increase chances of survival Only some organisms will survive the competition in a natural environment

  • those with the most successful adaptations (compete) Organisms best adapted to their environment are more likely to survive to pass on those traits. In future generations, there will be more organisms with these traits Mutations
  1. Much later, the laws of ___________ inheritance were combined with Darwin’s theory of evolution.
  2. __________are observed within a species are caused by ______________ or changes in the genes.
  3. Are all mutations negative?
  4. What happens to the organisms with negative mutations? Ex. Albino rabbit in the wild.
  5. What about those with positive mutations? Brain Pop Log into Brainpop. Username: lcpsm_farmwell password: middle
  6. Watch the Brain Pop on Charles Darwin – take the quiz after watching. Show the teacher your score and record it here: _______
  7. Watch the Brain Pop on Natural Selection – take the quiz after watching. Show the teacher your score and record it here: _______ Student Choice Activity