Natural Selection vs. Selective Breeding

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Presentation transcript:

Natural Selection vs. Selective Breeding Environmental and Human Influences EPISD Middle School Science Standards Based Curriculum 2015-2016

Natural Selection vs. Selective Breeding Process by which organisms that are most suited to their environment survive and reproduce most successfully. Method of breeding that allows only those organisms with desired characteristics to produce the next generation. Natural Selection vs. Selective Breeding EPISD Middle School Science Standards Based Curriculum 2015-2016

What is a plant adaption Natural Selection Summary: Environmental Influence due to organism adaptation. What is a plant adaption common in the dessert? Mouth parts ex: beaks, teeth External color ex: fur, scales, feathers Behavior EPISD Middle School Science Standards Based Curriculum 2015-2016

Examples of Natural Selection Peppered Moth In Manchester England (mid to late 1800’s) industrial polutions darkened the bark of trees impacting the color of moth in the area. http://www.utdanacenter.org/texteams/do wnloads/scienceresources/pradeep_fla.swf EPISD Middle School Science Standards Based Curriculum 2015-2016

Examples of Natural Selection Galapagos Finch One small string of islands, many beak variations http://www.abdn.ac.uk/zoohons/lecture5/s ld004.htm Slides 4-15 EPISD Middle School Science Standards Based Curriculum 2015-2016

Selective breeding Domestic Animals Plants: Ex: Chickens, Dogs, Cows Summary: Human Influence on characteristics and behavior. Domestic Animals Ex: Chickens, Dogs, Cows Plants: Ex: Corn, Brasilica, Fruit hybrids EPISD Middle School Science Standards Based Curriculum 2015-2016

Examples of Selective Breeding Domestic Animals Various animals that have been tamed and made fit for a human environment. Horses http://www.horsebreedsinfo.com/ Chickens http://chickenbreedslist.com/ Cows http://www.raw-milk- facts.com/dairy_cow_breeds.html EPISD Middle School Science Standards Based Curriculum 2015-2016

Examples of Selective Breeding Domestic Plants Various plants have been bred to maximize food potential. Pigs and Vegetables http://artficialselection.blogspot.com/2009/12/ g.html Maize to Corn http://www.flickr.com/photos/nsf_beta/374557 1067/ Fruit http://www.fruitsinfo.com/hybrid-fruits.php EPISD Middle School Science Standards Based Curriculum 2015-2016