Ch.25 - SpeciationWorksheetSee all chapters
All Chapters
Ch.1 - Introduction to Biology
Ch.2 - Chemistry
Ch.3 - Water
Ch.4 - Carbon
Ch.5 - Biological Molecules
Ch.6 - Cells
Ch.7 - The Membrane
Ch.8 - Energy and Metabolism
Ch.9 - Respiration
Ch.10 - Photosynthesis
Ch.11 - Cell Signaling
Ch.12 - Cell Division
Ch.13 - Meiosis
Ch.14 - Mendelian Genetics
Ch.15 - Chromosomal Theory of Inheritance
Ch.16 - DNA Synthesis
Ch.17 - Gene Expression
Ch.18 - Regulation of Expression
Ch.19 - Viruses
Ch.20 - Biotechnology
Ch.21 - Genomics
Ch.22 - Development
Ch.23 - Evolution by Natural Selection
Ch.24 - Evolution of Populations
Ch.25 - Speciation
Ch.26 - History of Life on Earth
Ch.27 - Phylogeny
Ch.28 - Prokaryotes
Ch.29 - Protists
Ch.30 - Plants
Ch.31 - Fungi
Ch.32 - Overview of Animals
Ch.33 - Invertebrates
Ch.34 - Vertebrates
Ch.35 - Plant Anatomy
Ch.36 - Vascular Plant Transport
Ch.37 - Soil
Ch.38 - Plant Reproduction
Ch.39 - Plant Sensation and Response
Ch.40 - Animal Form and Function
Ch.41 - Digestive System
Ch.42 - Circulatory System
Ch.43 - Immune System
Ch.44 - Osmoregulation and Excretion
Ch.45 - Endocrine System
Ch.46 - Animal Reproduction
Ch.47 - Nervous System
Ch.48 - Sensory Systems
Ch.49 - Muscle Systems
Ch.50 - Ecology
Ch.51 - Animal Behavior
Ch.52 - Population Ecology
Ch.53 - Community Ecology
Ch.54 - Ecosystems
Ch.55 - Conservation Biology
Sections
Species

Solution: A species of bird in the forest have specialized beaks for pecking through nuts and eating them. The birds with the larger beaks are able to crack open the bigger nuts and the birds with the smaller beaks are able to crack open the small nuts, but the birds with the medium beaks can't pick through the small nuts or crack the big nuts and are eventually eliminated due to natural selection. The two extremes in beak sizes are selected for causing the big birds to grow bigger with bigger beaks and the small birds to become smaller with smaller beaks. Their genome becomes different that they can no longer interbreed. What type of speciation is this an example of?a. peripatric speciationb. parapatric speciationc. allopatric speciationd. sympatric speciation 

Solution: A species of bird in the forest have specialized beaks for pecking through nuts and eating them. The birds with the larger beaks are able to crack open the bigger nuts and the birds with the smaller b

Problem

A species of bird in the forest have specialized beaks for pecking through nuts and eating them. The birds with the larger beaks are able to crack open the bigger nuts and the birds with the smaller beaks are able to crack open the small nuts, but the birds with the medium beaks can't pick through the small nuts or crack the big nuts and are eventually eliminated due to natural selection. The two extremes in beak sizes are selected for causing the big birds to grow bigger with bigger beaks and the small birds to become smaller with smaller beaks. Their genome becomes different that they can no longer interbreed. What type of speciation is this an example of?

a. peripatric speciation

b. parapatric speciation

c. allopatric speciation

d. sympatric speciation