Trait evolution - Study guides, Class notes & Summaries

Cell Theory - All organisms are made of cells, and all cells come from pre-existing cells. Conclusion: If you trace a cell's lineage back far enough, you will discover that all cells are descended from a common ancestral cell Evolution - The heritable change in a population over time or a change in gene frequency in a population over a number of generations Proximate process - what happens in short term, measured in fractions of lifetimes Ultimate process - longer timeframe (lifeti...

Which of the following is the best definition for evolution? Correct Answer-A mechanism for how species change over time on planet earth. Who was responsible for formalizing the modern concepts of evolution? Correct Answer-Darwin, Wallace Two groups of organisms that have evolved from a common ancestor into very different forms is an example of Correct Answer-divergent evolution Which of the following is a NOT a misconception about the process of evolution. Correct Answer-Evolution work...

One definition of evolution is that evolution is "descent with modification". What does "modification" refer to in this definition? (1) Mutation and (2) Sexual Mixing What is the only statement that is NOT true about the genetic relatedness of life on Earth? Gorillas are the closest living relative to humans All but one feature listed below are shared between family trees and phylogenetic trees. Represent populations on each branch Which of the following is the only TRUE statement abou...

Aristotle, a philosopher - Answer-Pre-300 BCE -described species as fixed -Scale of nature: arranges species in order of lowest to highest complexity -linear hierarchy Hutton, a geologist - Answer-1795 -proposed gradualism -change is a slow but continuous process Thomas Robert Malthus, an economist - Answer-1798 -published "Essay on the Principle of Population'" -Human population growth is limited by resources; At some point we will reach carrying capacity, -can't grow exponentiall...

Bio 120 Exam QUESTIONS WITH DETAILED VERIFIED ANSWERS | A+ GRADE ASSURED Synapomorphy A shared derived character or trait state that distinguishes a clade from the other organisms. Analagous Having characteristics that are similar because of convergent evolution, not homology. Homologous Similarity in characteristics resulting from a shared ancestry. Porifera Sponges No true tissues Mostly marine, aquatic Asymmetric 2 germ layers (endoderm and ectoderm) No coelom Sessile Sessile At...

BIO 182 GCU & ASU 1 – 4 || With Complete Questions & Solutions (100% Accurate) BIO 182 GCU & ASU 1 – 4 || With Complete Questions & Solutions (100% Accurate) Opposition to irrational numbers stemmed from a world view involving naturalistic evolution. - ANSWER - False The belief that irrational numbers cannot exist reflects religion more than science. - ANSWER - True Modern mathematicians accept irrational numbers because such numbers provide more accurate solutions to problems than...

BIO206 Final Exam; Questions and Answers 100% Correct Homoplasy Correct answer-A similar (analogous) structure or molecular sequence that has evolved independently in two species. Problems with Homoplasy Correct answer-It can create an unpredictable gain or loss of a specific trait over time and during the evolution of new species Slowly evolving genes Correct answer-Useful for distantly related species Rapidly evolving species Correct answer-useful for closely related species Most us...

the purpose of the development of a vacuole is correct answers digest food, regulate excess water and regulate internal environment if a virus that normally infects cells in the lining of an elephant's lungs enters a rhinoceros correct answers it cannot infect the rhinoceros because a virus is specific to a cell type and a species photoheterotrophs get their energy from blank and their carbon source is correct answers light carbon source chloroplast arose twice on a phylogentic tree ma...

BIO 112~ Exam Review Latest Version with Verified Solutions One definition of evolution is that evolution is "descent with modification". What does "modification" refer to in this definition? (1) Mutation and (2) Sexual Mixing What is the only statement that is NOT true about the genetic relatedness of life on Earth? Gorillas are the closest living relative to humans All but one feature listed below are shared between family trees and phylogenetic trees. Represent population...

biological psychology correct answers behavioral neuroscience. Is the study of biological bases of psychological processes and behaviors neuroscience correct answers study of the nervous system Five major perspectives used to study the biology of behavior correct answers 1) describing behavior 2)studying evolution of behavior 3) observing the development of behavior over the life span 4) studying biological mechanisms of behavior 5) studying applications of biological psycholog...