After speciation occurs - Study guides, Class notes & Summaries

Anthro 2B Final (Egan) verified answers and questions 2023. macro-evolution - correct tion above the species level micro-evolution - correct tion below the species level speciation - correct s when one species splits into two, which involves a reproductive isolating mechanism example of reproductive isolation but NOT speciation - correct rd frogs in Florida vs. Maine, can still reproduce but just can't because they are isolated; gene flow can happen extrinsic is...

BIOL 171 Final Exam Questions and Answers 2024 Evolution is a theory that can be applied to different species, but cannot be directly tested False Several scientific studies have reported results that reject the process of evolution False Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:14 / 0:15 Full screen Brainpower Read More Two species of birds that are closely related have evolved from an extinct common ancestor True Crab and huma...

Macroevolution changes in a population over very long periods of time. Speciation the splitting of one species into two or more new species Biological Species Concept offers testable way to define a species that does not depend on appearance: The members of a species interbreed and have a shared gene pool, & each species is reproductively isolated from every other species. Gene flow occurs between the populations of a species, but not between pops of diff species. Biolo...

species - evolutionarily independent population or group of populations synapomorphy - a trait that is found in certain groups of organisms and their common ancestor, but is missing in more distant ancestors; identifies monophyletic groups; homologous traits that can be identified at the genetic, developmental, or structural level biological species concept - reproductive isolation between populations (they don't breed and don't produce viable, fertile offspring) - reproductive isolation...

Convergent vs Divergent Evolution - ANSWER -Divergent: one broad class but because of different features they diverge -Convergent: similar features between 2 different classes Punctuated Equilibrium vs Gradualism - ANSWER -Punctuated: concrete & defined phenotypes -Gradualism: phenotypes gradually evolve Speciation - ANSWER Formation of new species 1) Allopatric: separated by geographical barrier (mountain, ocean, river) -Barrier divides species 1 and species 2 2) Parapatric...

bio 181 exam 1 (kosal)Compare and contrast the different mechanisms of speciation (allopatric, sympatric, parapatric, peripatric). - correct answer -Allopatric speciation takes place when populations are geographically isolated. Volcano explodes and populations are divided. -Sympatric occurs without geographic isolation. Occurs through the process of polyploidy: producing individuals with more than two sets of chromosomes. It is a genetic change within a population. -Parapatric speciation ...

BSC1010 CHAPTER 22 TESTBANK EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS GUARANTEED A++ GRADE punctuated equilibrium A model that assumes that evolution occurs in spurts, between which there are long periods of stasis with little evolutionary change. biological definition of species a group of organisms that are reproductively isolated from other such groups Locked speciation recurrent isolation promotes Adaptive radiation is the phenomenon where one species diverges into many by...

What is microevolution? - ️️The change in allele frequencies that occurs over time within a population. What is macroevolution? - ️️Major evolutionary changes over time, the origin of new types of organisms from previously existing, but different, ancestral types. What is a species? - ️️A group of populations whose members possess similar anatomical characteristics and have the ability to interbreed. What is allopatric speciation? - ️️The formation of a new species in po...

A ___ is a community along with its physical environment. Ecosystem By definition, a _____ consists of individuals of the same species that are living in the same area at the same time. Population Parasitic relationships fall under the category of _____. Consumption If two species of birds are interacting, and both are experiencing a negative effect on fitness, which type of interaction is occurring? Competition ____ is defined as any change in allele frequency in a population that is due to...

BIO 345 Final Exam | Questions and Answers (Complete Solutions) Which pattern best characterizes the history of extinctions on Earth? A. An increasing per capita background extinction rate B. Five major mass extinctions and several lesser episodes of heightened extinction rates C. Three major mass extinctions and several lesser episodes of heightened extinction rates D. Three major mass extinctions and a low background extinction rate E. An increase in the number of mass extinctions over time...