Transcript Study Tasks
No DO NOW 3/10 Review Day! 1. Jeopardy 2. Review Tasks 3. Stamps Study Tasks Evolution Study Guide: Evolution Test • Geologic Time Scale • Natural Selection – Major Events • Evidence, Inference, Sci. Theory • Evidence for Evolution – Environment’s role in it – Mutation’s role in it • Caminalcules – Divergent, Convergent Evol – Common Ancestor – Rapid vs. Slow evolution – Scientists (know all 4) – What the evidence tells us • • Charles Darwin – History of the Theory – Evolution Theory – His 6 points; The 4 factors required for Evolution Summer Reading Connection (honors) • Radioactive half life problems (honors) Due Tuesday: Your completed Evolution Review Packet Review Task #1 2 organisms, born simultaneously and with mutations from their parents—both possessing aerodynamic body shape, fins, gills, and the ability to regulate salt levels—one of whom was born in the desert (org #1) and the other in the ocean (org #2). – Over the next 100 years, which organisms (1 and/or 2) do you expect to see in the desert? The ocean? – Is organism 1 (born in desert) able to “adapt” to its environment? Why or why not? – What happens to each organism in their given environments? – What changed over the past 100 years? What changed it? – Organisms considered to be “adapted” are those who clearly fit and are successful in their environment (“have found their niche”). How did those organisms get that way? Review Task #2 • List 2-3 things you can learn from a phylogenetic tree. • Identify 2 very closely related organisms based off of these trees and explain how you know. Review Task #3 • List four of Darwin’s observations that he deemed necessary in order for a population to change/evolve. • Support each explanation by giving a specific example of the observation. Review Task #3.5 Explain how the population of the rock pocket mouse changed through natural selection. Use the terms in your response and underline each: mutation, environment, species, individual Review Task #4 A scientist was studying four different organisms and made the following findings through studying their structures, proteins and genes they had in common. Which two species do you infer are most closely related? Provide evidence. Could we infer that all of these organisms had a distant common ancestor? DNA SEQUENCE FOR CYTOCHROME C PROTEIN TGA AAT AAC CGG GGT ANATOMY AND PHYSICAL CHARACTERISTICS OBSERVED A CYTOCHROME C AMINO ACID SEQUENCE THR-LEU-LEU-ALA-PRO W INGS WITH 10 HOLLOW BONES, 2 LEGS WITH 3 BONES B THR-LEU-VAL-VAL-PRO TGA AAT CAC CAT GGT W INGS WITH 10 HOLLOW BONES, 2 LEGS WITH 3 BONES C THR-LEU-LEU-ALA-PRO TGA AAT AAC CGG GGT W INGS WITH 10 HOLLOW BONES, 2 LEGS WITH 3 BONES D THR-LEU-ALA-ALA-PRO TGA AAT CGG CGG GGT W INGS WITH 10 HOLLOW BONES, 2 LEGS WITH 3 BONES ORGANISM Review Task #5 • List the 4 branches of science studied in the project, Evidence for Change Across Time. • Next to each branch, list the evidence studied (eg homologous structures, DNA, horses) and what they did with that evidence to support the theory of evolution. Review Task #6 The half life of iron-59 is 45.1 days. If you start with a 36g sample, how long will it take until you only have 1.13g left? How many half-lives did that process take? No. of Half Lives Time Amount of Sample Left Review Task #7 A fossil was found to have 581.25g of N14 and 18.75g of the radioactive isotope, C14. How long has this fossil been dead if the half life of C14 is 5,730 years?