Structural homology Study guides, Class notes & Summaries

radiometric dating ,radiocarbon dating,potassium-40 dating, half-life, punctuated equilibrium, Cambrian explosion, macroevolution, microevolution, Linnaeus, Lamarck,Cuvier,Lyell and Hutton,Malthus,descent with modification,selective breeding The process of humans intentionally selecting a few organisms with desired traits to serve as parents of the next generation, over time producing organisms with altered characteristics species a group of related organisms sharing a distinctive form. If se...

Bio 117 Exam 1 | Questions & 100% Correct Answers (Verified) | Latest Update | Grade A+ Evolution Correct Answer: A change in a population overtime *change = usually a slight modification of traits Vestigial Trait Correct Answer: A trait or characteristic that does not function well or at all How can vestigial traits be used to show change in organisms over time? Correct Answer: They are a trait present in ancestors but no longer useful in living organism. Examples: tail bones in hu...

Organism - A living entity made up of one or more cells Theory - An explanation for a very general class of phenomena or observations Cell Theory - All organisms are made of cells and all cells come from preexisting cells Null Hypothesis - Specifies what we should observe when the hypothesis being tested isn't correct Control Group - A group that checks for other factors which are not being tested Two components of scientific theories - Pattern and process Population - Individuals of the ...

radiometric dating - general approach used to determine the age of specimens using the rate of decay of radioactive isotopes radiocarbon dating - a chemical analysis used to determine the age of organic materials based on their content of the radioisotope carbon-14 potassium-40 dating - radiometric dating method often used in the assessment of volcanic intrusions in sedimentary layers. It is based on measurement of the product of the radioactive decay of an isotope of potassium (K) into ar...

Deductive Thinking - Answer - science proceeds by advancing hypotheses and comparing them to facts. - facts can be observed from nature, or we can construct experiments to test specific hypotheses Thinking Conceptually - Answer - logical interpretation and inference is simple, but not always easy - being on familiar grounds helps us think clearly Logical Equivalence - Answer - if they express the same fact in different words. In other words, if either one is true, the other one must be...

Evolution - Answer A change in a population overtime Vestigial Trait - Answer A trait or characteristic that does not function well or at all; a trait present in ancestors but no longer useful in living organism. The types of homology that are used as evidence for decent of extant species from common ancestors - Answer 1. Biogeography 2. Genetic 3. Structural 4. Developmental Biogeography - Answer similar species found in the same geographic area Genetic - Answer ...

BIO112 Spring 2024 Exam 1 Terms radiometric dating general approach used to determine the age of specimens using the rate of decay of radioactive isotopes radiocarbon dating a chemical analysis used to determine the age of organic materials based on their content of the radioisotope carbon-14 potassium-40 dating radiometric dating method often used in the assessment of volcanic intrusions in sedimentary layers. It is based on measurement of the product of the radioactive decay of an isot...

Criteria for natural selection - Answer variation, heritable, influences fitness natural selection acts on __________ and evolutionary change acts on _____________ - Answer individuals, populations Artificial selection - Answer driven by humans selectively breeding How fast/far can artificial selection go? - Answer FAST -depends on how many genes -how much the phenotype is controlled by the environment FAR -presence of deleterious trade offs -limits of the genetic variation availab...

Evolution Correct Answer: A change in a population overtime *change = usually a slight modification of traits Vestigial Trait Correct Answer: A trait or characteristic that does not function well or at all How can vestigial traits be used to show change in organisms over time? Correct Answer: They are a trait present in ancestors but no longer useful in living organism. Examples: tail bones in humans Examples of vestigial traits Correct Answer: Examples: *Tail bone in humans (compare ...

Cell theory - Answer all organisms are made of cells and all cells come from pre-existing cells Louis Pasteur - Answer designed an experiment to test if cells arose spontaneously or if they were the result of pre-existing cells Evolution - Answer postulates that (a) species are related to one another by common ancestry and (b) species can change through time from generation to generation. Natural selection - Answer process that explains how evolution occurs Fitness - Answer the abil...