Sympatric speciation - Study guides, Class notes & Summaries

In a hierarchical classification, we belong to the family... correct answersHominidae Hooves and teeth of horses have coevolved with the evolution of the grasslands, and grasslands first evolved in cool and dry climate about 33 million years ago. (T or F) correct answersTrue A defining characteristic of sympatric speciation is... correct answersThe appearance of new species in the midst of old ones What species concept defines a species as a set of organisms representing a specific evol...

Section I (Multiple-Choice Questions) Time: 80 minutes 100 questions Directions: Each of the following questions or statements is followed by five possible answers or sentence completions. Choose the one best answer or sentence completion. 1. In which of the following are the nuclear activities most opposite? A. prophase and metaphase B. prophase and anaphase C. prophase and telophase D. metaphase and anaphase E. metaphase and telophase 2. A severe storm forms a new river that...

Test bank for Ecology: The Economy of Nature 9e 9th Edition by Rick Relyea. ISBN-13: 5542 Full Chapters test bank included Chapter 1 An Introduction to Ecology 1.1 Ecological Systems Exist in A Hierarchy of Organization Individuals Populations Communities Ecosystems The Landscape The Biosphere 1.2 Physical and Biological Principles Govern Ecological Systems Conservation of Matter and Energy Dynamic Steady States Evolution 1.3 Different Organisms Play Diverse Roles in Ecological...

Allopatry - Vicariance - Chance separation (earthquake, etc.) Allopatry- Dispersal - A population moves to a new habitat, colonizes it, and forms a new population Although both are possible, which of the following situations is more probable regarding the evolutionary history of a species (i or ii): i. Common characteristics are usually shared with other closely related organisms ii. Common traits evolved several times throughout history and have nothing to do with shared ancestry - i? Ap...

taxonomic diversification divergence causing a change in species name Taxonomy The scientific study of how living things are classified; like the vocabulary to the grammar of systematics Carol Linnaeus "Father of Taxonomy"; established his classification of living things; famous for animal naming system of binomial nomenclature; came BEFORE Darwin sympatric within a region Allopatric across regions taxonomic (morphological) naming of species naming based mostly on distinct measura...

What is micro-evolution? - Changes in allele frequencies within populations, often associated with adaptation, can be measured from one generation to the next "small changes" What is macro-evolution? - Major changes in the history of life, origin of new species, generates biological diversity "big changes" What is a species? - a group of populations whose members have the potential to interbreed with one another in nature to produce fertile offspring What is allopatric speciation? - ...

AP Biology Exam Questions and Answers Graded A+ What are the 2 theories of evolution? Explain each Gradualism- geologic changes result from slow, gradual, continuous process Punctuated Equilibrium- Long period of stasis punctuated by short bursts of significant change. What was Lamarck's theory and why was it wrong? Lamarck = Inheritance of Acquired characteristics- traits acquired during lifetime could be passed on What is natural selection Comptetition for limited resources re...

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...

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 populations that are geographi...

A certain species of sea otters lives off the coast of Alaska. Some have the ability to tolerate the colder waters farther north while others stay in the central coastal area. As a result of a large oil spill along the northern coast, most of the otters living in those colder waters die. Afterwards, the population of otters, in general, is now less tolerant of cold water. What is this an example of? A.) allopatric speciation B.) hybrid sterility C.) bottleneck effect D.) sympatric specia...