{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

1.Evolution - Principles of Evolution What is evolution The...

Info icon This preview shows pages 1–10. Sign up to view the full content.

View Full Document Right Arrow Icon
Principles of Evolution
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
What is evolution? The accumulation of inherited changes within a POPULATION over time. Population: group of individuals of 1 species that live in the same geographic area at the same time. Species: organisms with similar structures, function & behavior that can interbreed.
Image of page 2
How do we know thing have changed? Fossils Remains of dead organisms which are preserved in rock
Image of page 3

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Fossils develop in different ways.
Image of page 4
Uniformitarianism The hypothesis that the earth developed slowly through natural processes. Index Fossils Certain organisms that characterize a large geographical area.
Image of page 5

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Other ways to date fossils Radioisotopes Emit radiation & change into different elements as they decay Radioactive Decay Break down of radioisotope Uranium – 235 = Lead – 207 Half Life Time required for ½ an atom of radioisotope to change into a different atom
Image of page 6
1. 2. The number of fossils decreases but the number of species increase. 3. Fossil species remain constant. 4. Lower fossils resemble living species. 5. Fossil forms are arranged in random patterns. Assume it’s possible to remove continuous cores of rock from the earth 6 inches in diameter and 3000 feet long. Uniformitarianism would predict which of the following about the fossils in such cores as they are examined from top to bottom?
Image of page 7

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Jean Baptiste Lamarck Developed the hypothesis of “Inheritance of Acquired Characteristics” This hypothesis stated that parents could pass along their acquired characteristics to their off spring. Could this work?
Image of page 8
1. humans should no longer have an appendix.
Image of page 9

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 10
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern