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Evolution Catalyst: After watching the video, write: 2 important things 1 question 1 interesting thing 1/8/15 Reflection: 35L 35R Catalyst Friday 1/8/15 Watch Video and write in complete sentences, a minimum of: •2 important things •1 question •1 interesting thing (write down any words or phrases you are not familiar with) http://www.youtube.com/watch?v=Vhhwd2Wc4PI (frogs) http://www.youtube.com/watch?v=laanr1IdeBw (talk on peafowl) Evolution-what is it and how does it happen? Evolution is the change in the inherited characteristics of biological populations over successive generations. Catalyst: After watching the video, write: 2 important things 1 question 1 interesting thing Reflection: Evolution Evolution : the change in the inherited characteristics of biological populations over successive generations. Evolution (1st part): change in inherited characteristics of populations…. Think back to some examples and discussions we have had (red blood cells, giraffe, bird beaks)— what are some changes in characteristics and how did these changes arise? Evolution (2nd part): happens over successive generations For the inherited characteristics to make it to next generation and stay in gene pool, what needs to happen? What needs to happen for me to pass along my inherited characteristics to the next generation? How old is the Earth? Evolution – Survival & Reproduction What affects a species ability to survive? What affects a species ability to reproduce? Selective Pressures Catalyst: After watching the video, write: 2 important things 1 question 1 interesting thing Reflection: Evolution Evolution : the change in the inherited characteristics of biological populations over successive generations. Selective Pressure: A cause that changes the survival and reproduction rates of a population. Catalyst: After watching the video, write: 2 important things 1 question 1 interesting thing Reflection: Evolution Evolution :the change in the inherited characteristics of biological populations over successive generations. Selective Pressure: A cause that changes the survival and reproduction rates of a population. Species: a group of organisms capable of interbreeding and producing fertile offspring. Evolution happens by way of Natural Selection and Sexual Selection Natural Selection: need to survive & reproduce Sexual Selection: Need to compete for and attract a mate to reproduce Evolution happens by way of Natural Selection and Sexual Selection Natural Selection: need to survive & reproduce Environmental Pressures including limited resources, competition and predation Examples: Heredity: Characteristics we inherit impact our adaptation to survive in an environment & reproduce. Sexual Selection: Need to compete for and attract a mate to reproduce Evolution happens by way of Natural Selection and Sexual Selection Natural Selection: need to survive & reproduce Environmental Pressures including limited resources, competition and predation Heredity: Characteristics we inherit have a genetic basis. These characteristics impact our adaptation to survive in environment. Sexual Selection: Need to compete for and attract a mate to reproduce Male competition Males compete for access to females, and even whose sperm gets to fertilize her eggs. Examples: Examples: Female choice Females choose which males to mate with, how long to mate, and even whose sperm will fertilize her eggs Examples of Adaptations to help with Natural and Sexual Selection elephant seals fight over territories Katydids have camouflage to look like leaves. Non-poisonous king snakes mimic the warning coloration of poisonous coral snakes. Examples of Adaptations to help with Natural and Sexual Selection Orchids fool wasps into “mating” with them. The male blue-footed booby exaggerates his foot movements to attract a mate. fruit flies perform dances to win over a mate and prove worthy for reproduction Bird Beak Adaptations How could environment change and what kind of beak would be selected and give rise to a new species? Catalyst: After watching the video, write: 2 important things 1 question 1 interesting thing Reflection: Adaptation: (complete definition with group and list examples) Extinction: (complete with group) Evolution Evolution :the change in the inherited characteristics of biological populations over successive generations. Selective Pressure: A cause that changes the survival and reproduction rates of a population. Species: a group of organisms capable of interbreeding and producing fertile offspring. Vocabulary Squares • Each group will be assigned a vocabulary word and create a vocabulary square on poster paper Define it Draw it Vocabulary Examples of word Use it in a sentence Vocabulary Words • • • • • Adaptation Natural Selection Evolution Camouflage Extinction Videos: Video #1: http://video.nationalgeographic.com/video/animals/invertebrates-animals/octopus-andsquid/octopus_giant_kills_shark/ Video #2: The vampire squid can turn itself "inside out" to avoid predators http://video.nationalgeographic.com/video/animals/invertebrates-animals/octopus-andsquid/squid-vampire-threatened-vin/