attachment-4.ashx

attachment-4.ashx - Review Sheet PSY3323 Exam 1 Be familiar...

Info iconThis preview shows pages 1–9. Sign up to view the full content.

View Full Document Right Arrow Icon
Review Sheet PSY3323 Exam 1 Be familiar with the following concepts as we discussed them in class and as they are discussed in the readings. If you can explain the concept (or person) in a sentence to someone unfamiliar with the class then you will do fine on the exam! 1. Prevailing thoughts in Darwin’s time Lamarck- first scientist to use the word biologie – study of life is a distinct science. Two major causes of species change 1. Natural tendency for each species to progress to a higher form 2. The inheritance of acquired characteristics… struggle to survive causes secretion of a fluid that enlarges organs involved Cuvier – Catastrophism – species are extinguished periodically by sudden catastrophes and replaced by new species Fossil record leads people to question the similarity between species. Functionality – species possess characteristics that seem to have a purpose *A causal mechanism or process to explain these biological phenomena was needed.
Background image of page 1

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

View Full DocumentRight Arrow Icon
2. Artificial selection
Background image of page 2
3. Malthus’ theory of population growth - Economist, his idea was: (1.)“ some will survive some won’t” more offspring will be produced than live . (2) individuals vary in characteristics ex. Finches to turtles. (3.) charateristics can be inherited. - Survival may hinge on being equipped to deal with environment. Find food, get mate, fight off competitors. Survivors will by nature of surviving out reproduce.
Background image of page 3

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

View Full DocumentRight Arrow Icon
4. Darwin’s theory of natural selection - Those individuals possessing characteristics increasing chances of survival and reproduction are more likely to leave descendants. - Decesdants will posses more chararcterics that enhance survival - Characteristics evolve over time to resemble better adaption individuals - Darwin’s theory explained over time indicating descent with modification. - What Darwin didn’t know was how traits acquired by offspring.
Background image of page 4
5. Descent with modification
Background image of page 5

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

View Full DocumentRight Arrow Icon
6. Mendel’s theory of inheritance Gene- smallest discrete unit that is inherited by offspring intact, without being broken up or blended—this was Mendel’s critical insight Mendel cross-bred pea plants to show that inheritance is particulate. When Mendel’s theory of inheritance came together with Darwin’s theory of natural selection, this became known as the Modern Synthesis.
Background image of page 6
7. Inheritance of acquired characteristics
Background image of page 7

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

View Full DocumentRight Arrow Icon
8. Four pieces of evidence for evolution: fossil record, convergent evolution, homology, embryology -Fossil Record, evidence living things evolved, show history of life on earth and how organisms have changed over time. 3 steps: organism buried in sediment, bone/hard tissue mineralizes, and sediment hardens and forms rock. -Fossil Dating, relative position soil, absolute estimate age using radioactive decay -Relative dating performed by estimating fossil age compared with other fossils and events known to happen, no info about fossil age. - Absolute Dating, performed by radioactive decay, amount remaining radioactive isotopes still
Background image of page 8
Image of page 9
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 10/10/2011 for the course PSYCH 3315 taught by Professor Etherton during the Spring '09 term at Texas State.

Page1 / 21

attachment-4.ashx - Review Sheet PSY3323 Exam 1 Be familiar...

This preview shows document pages 1 - 9. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online