Ap Biology Chapter 1 Summary
Chapter 1. The science of Biology
Outline:
1. Properties of life 2. Science a. Scientific Reasoning/method b. Experimental controls 3. Intro to Evolution a. Charles Darwin b. Malthus c. Natural selection d. Examples of evolution 4. Evidence for evolution
Terms:
Biology: Scientific study of living organisms and how they evolved.
Science: Knowledge derived from observation and experimentation carried out to determine the principles underlying what is being studied.
Hypothesis: A suggested explanation that accounts for the observations
Experiment: Test of a hypothesis
Variable: An influencing factor
Theory: A proposed explanation for some natural …show more content…
Darwin believed this when he stepped onto the deck of the Beagle in 1831.
Geologist Charles Lyell (1797-1875) wrote Principles of Geology (1830), Darwin read this book while on the ship. It portrayed a world that was full of new species and extinction that challenged the concept of an earth that is only a few thousand years old and the idea that species are fixed in time. Lyell’s work did not prove that the earth was old, but it presented compelling evidence that is had to be older than 6000 years. The actual age of the earth is 4.5 billion years.
In 1831 He was sent out on a 5-year voyage on the HMS Beagle, the ship would be mapping the South American coast and Darwin was the ship’s naturalist. He made several stops along the way, one stop in particular was in the Galapagos islands. Darwin almost didn’t get the job of naturalist, apparently the ship’s captain didn’t think Darwin’s nose looked right (I’m not kidding).
It was only much later in 1859 when he finally published his book. Another naturalist named Alfred Wallace independently developed a similar theory and Darwin and Wallace jointly presented their findings. Malthus influenced both Darwin and …show more content…
Evolution After Darwin
Darwin died in 1882, since then there have been many developments that have added support to Darwin’s concepts
Fossils: Today’s fossil record is much more complete than in Darwin’s time. The earliest fossil date back 3.5 billion years. Transitional forms have been found, clearly showing the path of evolution. The fossil record is not complete but t
Age of the Earth: The earth has be shown to be about 4.5 billion years old not a few thousand. Darwin realized that evolution would take time, but he didn’t have clear idea of the age of the earth.
Genetics/Heredity: In Darwin’s day, nothing was known about heredity or genes. Genetics became established after his death.
Comparative Anatomy: these studies provide strong support for evolution, these help to sort out evolutionary relationships. Homologous structures have a common evolutionary origin but have a different function (hand bones in a human, bat, and dolphins) Analogous structures have a similar function but have different evolutionary origins (bird wings vs. bumblebee
Outline:
1. Properties of life 2. Science a. Scientific Reasoning/method b. Experimental controls 3. Intro to Evolution a. Charles Darwin b. Malthus c. Natural selection d. Examples of evolution 4. Evidence for evolution
Terms:
Biology: Scientific study of living organisms and how they evolved.
Science: Knowledge derived from observation and experimentation carried out to determine the principles underlying what is being studied.
Hypothesis: A suggested explanation that accounts for the observations
Experiment: Test of a hypothesis
Variable: An influencing factor
Theory: A proposed explanation for some natural …show more content…
Darwin believed this when he stepped onto the deck of the Beagle in 1831.
Geologist Charles Lyell (1797-1875) wrote Principles of Geology (1830), Darwin read this book while on the ship. It portrayed a world that was full of new species and extinction that challenged the concept of an earth that is only a few thousand years old and the idea that species are fixed in time. Lyell’s work did not prove that the earth was old, but it presented compelling evidence that is had to be older than 6000 years. The actual age of the earth is 4.5 billion years.
In 1831 He was sent out on a 5-year voyage on the HMS Beagle, the ship would be mapping the South American coast and Darwin was the ship’s naturalist. He made several stops along the way, one stop in particular was in the Galapagos islands. Darwin almost didn’t get the job of naturalist, apparently the ship’s captain didn’t think Darwin’s nose looked right (I’m not kidding).
It was only much later in 1859 when he finally published his book. Another naturalist named Alfred Wallace independently developed a similar theory and Darwin and Wallace jointly presented their findings. Malthus influenced both Darwin and …show more content…
Evolution After Darwin
Darwin died in 1882, since then there have been many developments that have added support to Darwin’s concepts
Fossils: Today’s fossil record is much more complete than in Darwin’s time. The earliest fossil date back 3.5 billion years. Transitional forms have been found, clearly showing the path of evolution. The fossil record is not complete but t
Age of the Earth: The earth has be shown to be about 4.5 billion years old not a few thousand. Darwin realized that evolution would take time, but he didn’t have clear idea of the age of the earth.
Genetics/Heredity: In Darwin’s day, nothing was known about heredity or genes. Genetics became established after his death.
Comparative Anatomy: these studies provide strong support for evolution, these help to sort out evolutionary relationships. Homologous structures have a common evolutionary origin but have a different function (hand bones in a human, bat, and dolphins) Analogous structures have a similar function but have different evolutionary origins (bird wings vs. bumblebee