Galapagos Study guides, Class notes & Summaries

IB Biology: Evolution Questions and Answers Already Passed What is a theory? A comprehensive explanation of some aspect of nature (vs a hypothesis, which is just a prediction as to the result of an experiment). What were some ideas from Darwin's time that influenced his work? French naturalist Buffon in the mid-1700s studied fossils and said the Earth must be older than previously assumed; Lamarck in the early 1800s proposed that life changes over time. Define acquired vs heritab...

Bio 182 Final Exam Questions with Correct Answers Which of the following would be an example of convergent evolution? A. Hummingbird Bill sizes change in the shape to easily fit into flowers B. Competition among finches of Galapagos islands causing speciation C. Anteaters in Australia and anteaters and South America both developing long narrow skulls D. Maple trees migrating northward after glaciers started to recede in North America - Answer-C. Anteaters in Australia and anteaters an...

IB Biology - Scientists of IB Bio 100% Correct Robert Hooke First person to observe cells and write the cell theory Ernst Ruska Developed the electron microscope in 1930s and won the Nobel Prize for it Friedrich Wohler Urea synthesis which falsified the theory of vitalism Davson-Danielli Proposed the 'protein sandwich' model for membrane structure Louis Pasteur Experiment with broth that confirmed that spontaneous generation of cells and organisms does not occur on Earth ...

Biology 121 - Usask Exam Questions And Answers endemic species - ANS live in only one or a very small number of places (eg island or lake) cosmopolitan species - ANS species that occur in most regions of the world Galapagos island - ANS - Many endemic species - 500 spp. of vascular plants are endemic -92% of species of land birds are endemic - 26% of marine birds are endemic Biological adaptation - ANS an anatomical structure, physiological process or behavioral trai...

Explain the concept of natural selection. - It is a process where organisms with advantageous traits leave more offspring than organisms with other traits - causing populations to change over time. (key mechanism of evolution) variation - traits vary from individual to individual heritable traits - A trait that can be passed on genetically from parent to offspring. fitness - the number of offspring an organism leaves over its lifetime compared to other individuals in the population Descri...

McMaster Bio 1M03: Exam Questions and Answers A, Guide Why might Pasteur's experiment be inconclusive? The swan-necked flask broth may not support cell growth, or the broth was poisoned. Experiment did not confirm hypothesis that all cells come from pre-existing cells Why are replicates important in experiments? To ensure that results were not achieved by random chance What is the definition of a replicate? Unit that shares a common thing (4 mice in one cage = 1 replicate) What ...

Evolution Questions and Answers Already Passed Fossils provide clear evidence that evolution has occurred. True Embryos of many different vertebrates look much more similar than the adult organisms. True Early horses were about the size of a fox. True Darwin's comparison of DNA sequences provided strong evidence of evolution. False - scientists' Today's scientists compare the anatomy, embryos, and DNA of modern organisms to understand how they evolved. True Homologous structures are stru...

ADVANCED PLACEMENT (AP) BIOLOGY:Identify Evolutionary Change Mechanisms 40 Questions Correctly Answered | 100% Rated What conclusion did Darwin draw from the finches he observed at the Galapagos Islands? Possible Answers: Organisms will evolve in order to fill unoccupied niches in their environment. Finches will all live in the same area of a tree, regardless of species type. Birds reserve a herd mentality, and will aspire to remain similar in appearance to one another. The larger organisms ha...

Evolution = correct answersChanges What is Evolution? correct answerschange in the genetic make-up of a population over generations What causes evolution? correct answersCaused by different pressures such as fight for food, habitat changes, by predation, etc. What is Jean Lamarch known for? correct answers- Environment causes changes - Use and disuse- The environment modifies traits - Inheritance of acquired traits "traits are passed to the offspring" - Ex. Long Neck of Giraffe ...

What conclusion did Darwin draw from the finches he observed at the Galapagos Islands? Possible Answers: Organisms will evolve in order to fill unoccupied niches in their environment. Finches will all live in the same area of a tree, regardless of species type. Birds reserve a herd mentality, and will aspire to remain similar in appearance to one another. The larger organisms have a large advantage in nature and will out-compete the smaller organisms. Correct answer: Organisms will evolve in o...