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ADAPTATIONS AND EVOLLUTION OF SPECIES

ADAPTATIONS AND EVOLLUTION OF SPECIES

ADAPTATIONS AND EVOLLUTION OF SPECIES. What is evolution? The change in the genetic make-up of a species over time. How does evolution occur?. GRADUALISM gradual process that goes on all the time PUNCTUATED EQUILIBRIUM periods of rapid change are separated by periods of little or no change.

By vine
(111 views)

The Origin of Species

The Origin of Species

The Origin of Species. Species. Biological Species. Ring Species. Prezygotic Habitat Isolation Behavior Isolation Temporal Isolation Mechanical Isolation Gametic Isolation. Postzygotic Hybrid Sterility Hybrid Inviability Hybrid Breakdown. Barriers. Habitat Isolation.

By guy
(2 views)

MECHANISMS OF EVOLUTION: GENETIC VARIATION

MECHANISMS OF EVOLUTION: GENETIC VARIATION

MECHANISMS OF EVOLUTION: GENETIC VARIATION. Quantity of DNA and the number of genes are highly variable among species Variation within a species is the result of the variety & random recombination of alleles possessed by individuals

By rod
(176 views)

SPECIES AND SPECIATION

SPECIES AND SPECIATION

SPECIES AND SPECIATION. What is a species?. Morphological Species Concept Phylogenetic Species Concept Biological Species Concept. Morphological Species Concept. Use physical similarities to classify species. Phylogenetic Species Concept.

By hada
(579 views)

Anthropology

Anthropology

Anthropology . Chapters 1 & 2. What is Anthropology?. From the Greek Anthropos = man Logos = study Anthropology is the study of man. Fields of Anthropology. Biological (Physical) Anthropology Human paleontology a.k.a. paleoanthropology - studies the emergence and evolution of humans

By megara
(408 views)

Ch 17 Speciation

Ch 17 Speciation

Ch 17 Speciation . Lecture outline . Speciation, species and linneaus. Species concepts. Biological Species Concept: Lineage Species Concept:. Allopatric Isolation . http://wps.pearsoncustom.com/wps/media/objects/3014/3087289/Web_Tutorials/18_A01.swf. Sympatric Isolation .

By kapila
(165 views)

Review Questions

Review Questions

Review Questions.

By varden
(61 views)

These are the events that cause evolution of a population:

These are the events that cause evolution of a population:

These are the events that cause evolution of a population:. Mutations Non-random mating (artificial selection-like the roan cattle problem) Migration (“gene flow”- genes moving into or out of the population) Genetic drift: Bottleneck effect* (see next slide)

By keagan
(91 views)

Changes in Species

Changes in Species

Changes in Species. 1. Chapter 19. Does evolution occur? Can we prove it?. 2. 6 min. Great Britain. Europe. North America. ATLANTIC OCEAN. PACIFIC OCEAN. Africa. Galápagos Islands. Equator. South America. Australia. Andes. Cape of Good Hope. Tasmania. Cape Horn.

By blenda
(115 views)

Speciation , the origin of new species, is at the focal point of evolutionary theory

Speciation , the origin of new species, is at the focal point of evolutionary theory

Speciation , the origin of new species, is at the focal point of evolutionary theory Evolutionary theory must explain how new species originate and how populations evolve Microevolution consists of adaptations that evolve within a population, confined to one gene pool…at the species level

By merrill-peterson
(1963 views)

Chapter 24

Chapter 24

Chapter 24. The Origin of Species. Fig. 24-1. http://science.discovery.com/videos/galapagos-beyond-darwin-charles-darwin.html. ….ON DARWIN AND HIS GALAPAGOS EXPERIENCE. In the Galápagos Islands Darwin discovered plants and animals found nowhere else on Earth.

By maryam-sampson
(88 views)

Speciation Where do species come from?

Speciation Where do species come from?

Speciation Where do species come from?. Two Basic Patterns of Evolutionary Change. Anagenesis. Cladogenesis. Definition of a species. Biological species

By therona
(0 views)

Types of evolutionary change

Types of evolutionary change

Anagenesis Microevolution adaptive change within species “descent with modification”. Cladogenesis Macroevolution derivation of new species from previously existing ones “transmutation of species”. Types of evolutionary change. Macroevolution. What is a species?

By emilyk
(0 views)

Chapter 24 The Origin of Species

Chapter 24 The Origin of Species

Chapter 24 The Origin of Species. Question?. What is a species? Comment - Evolution theory must also explain how species originate. Two Concepts of Species. Morphospecies. Problem. Where does extensive phenotype variation fit?. Two Schools. Biological Species. Key Points. Heaven Scent

By reisenbarth
(0 views)

Ch. 24 – The Origin of Species

Ch. 24 – The Origin of Species

Ch. 24 – The Origin of Species. What is a Species?. Speciation – the origin of new species

By nicholsa
(0 views)


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