Chapter 10-3 Notes: Natural Selection in Action

Slides:

Advertisements

Similar presentations

Evolution – Formation of New Species What is a species? Biological species concept - groups of interbreeding natural populations that are reproductively.

Advertisements

The Process of Speciation

ADAPTATIONADAPTATION AP Env Sci Natural Selection Predation, competition keep populations in check Adaptation may result from intraspecific.

Biodiversity, Ancestry, & Rate of Evolution (15.3)

Population GENETICS.

15.3 Evolution in Action. Standards CLE Explain how evolution contributes to the amount of biodiversity CLE Explain how genetic variation.

Speciation & Patterns of Evolution

Adaptations to the Environment. Adaptations  Any trait that helps an organism survive in its environment.

Chapter 16 Evolution of Populations. What Darwin Did Not Know He did not know how traits were passed on from one generation to the next. He did not know.

CP Biology Ms. Morrison. Genes and Variation  Gene pool = combined genetic information of all members of a particular population  Relative frequency.

Evolution & Speciation

Choose an Animal As a class, decide on an animal that is relatively well- known.

Chapter 17: Evolution of Populations

ENVIRONMENTAL IMPACT OVER TIME Chapter 2 Section 3.

Evolution Chapter 16 regents. Copyright Pearson Prentice Hall How Common Is Genetic Variation? Many genes have at least two forms, or alleles. All organisms.

Natural Selection (15.3) State Standard SB5D. Relate natural selection to changes in organisms.

An ecosystem includes all The different organisms Living in a certain area, along With their physical environment.

Biodiversity By: Adrian Gomez. Types of Diversity Genetic diversity-involves the range of all genetic traits, both expressed and recessive Species diversity-

3 events lead to speciation: separation, adaptation and division.

Microevolution. Levels of Evolutionary Study Microevolution: examines changes to the genes (alleles) within populations –Population Genetics: studies.

Chapter 17: Evolution of Populations Section 17-3: The Process of Speciation.

Name___________________ WebQuest Activity: Evolution Resources / Text References: Biology Textbook: Chapters 15 – 16 WebSite: Evolution 101

Chapter 17: Evolution of Populations

CHAPTER 16 HIGHLIGHTS EVOLUTION OF POPULATIONS. GENES AND VARIATION When evolution is occurring in a population of organisms, the ______________ of alleles.

SC.912.L  The variability among living organisms from all sources including, terrestrial, marine and other aquatic ecosystems and the ecological.

Isolation and the Evolution of New Species. Learning Objectives 1.To know how new species arise. 1.To understand how a population becomes isolated. 1.To.

Critter/Evolution Test Review

Natural Selection and Evolution

Darwin and Natural Selection

Evolution Practice Test

Development of New Species by Evolution

Evolution and Biodiversity: Origins, Niches, and Adaptations

Chapter 17: Evolution of Populations

Extinction: Use pages 224 – 226 to complete Summarize

Speciation evolution of a new species

Outcomes of Evolution.

Natural Selection Vocab Review

Evolution of Populations

Evolution and Biodiversity

Evolution and Biodiversity

Speciation Regular Bio 15-16

More Evolution notes….

Evolution and Biodiversity Origins, Niches, and Adaptation Chapter 5

More Evolution notes….

Natural Selection.

Ch 16 Evolution of Populations

The Theory of Biological Evolution

Factors that Affect the Process of Evolution

Speciation, Macroevolution, and Microevolution

Speciation Pt. 2.

Speciation -The definition of a new species is when it can NO LONGER REPRODUCE with the original population.

Evolution Standards Rachel Tumlin.

Chapter 17.3 (p ) Speciation.

Summary of Evolution by Natural Selection

Evolution vocab.

Natural Selection Natural selection: organisms with favorable traits for a particular environment survive, reproduce, and pass these traits on to the next.

Notes: What is Evolution (Genetic Basis)

III. Darwin’s Theory of Natural Selection

Ch. 17 The evolution of populations

III. Darwin’s Theory of Natural Selection

Chapter 10 Science Test Notes

Summary of Evolution by Natural Selection

The Evolution of Living Things.

#77 Isolation leads to speciation notes

Evolution Notes.

Traits and How They Change Environmental Impact Over Time

The Evolution of Populations & Speciation

Aim: What are the main ideas of Darwin’s theory of natural selection

Natural Selection Rests on 4 Premises:

Presentation transcript:

Chapter 10-3 Notes: Natural Selection in Action Speciation: the formation of new species as a result of evolution. Extinction: describes a species that has died out completely.

Environmental Factors: things that determine whether traits in a population are favorable or unfavorable. Genetic Variation: a measure of how much individuals in a population differ genetically.

Adaptation: the evolving of traits in response to environmental conditions. Speciation: the formation of a new species as a result of evolution. - separation, adaptation, & reproductive isolation are 3 parts of speciation.

Separation: the splitting apart of a portion of a population Separation: the splitting apart of a portion of a population. Natural Selection are effected by both genetic variation & environmental factors.

3 Different environmental conditions that can lead to the extinction of species: - increased competition - new predators - loss of habitat