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Download species change - New Braunfels ISD
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Evolution BINGO Vocabulary Review Fill in your BINGO card using the following words. Adaptive Radiation Convergent Evolution Cytochrome C Mimicry Anatomy Fossils DNA Sequence Divergent Evolution Gradualism Physiology Punctuated Equilibrium Homologous Structures Vestigial Structures Speciation Adaptation Extinction Relative Dating Law of Use and Disuse Disruptive Selection Directional Selection Survival of the Fittest Geographical Isolation Evolution Embryology Natural Selection Analogous Structures Competition Amino Acid Diversity Phylogeny Behavior Reproduction Isolation Stabilizing Selection Camouflage Charles Darwin Population Artificial Selection Radioactivity dating Endosymbiosis Common Ancestry of “The Origin of Species” Studied organisms and fossils on the Galapagos Islands Created the idea of Natural Selection Author Going against another for food, shelter, mate, etc. Two different species may have similar structures or characteristics due to what? is a type of natural selection in which genetic diversity decreases and the population mean stabilizes on a particular trait value. states that several key organelles of eukaryotes originated as symbioses between separate singlecelled organisms. According to this theory, mitochondria and chloroplasts represent formerly freeliving bacteria that were taken inside another cell. preserved dead body or evidence of ancient organisms; can show a step-by-step sequence of events over time examples: bones, amber, footprints, leaves, shells dNA analysis shows relationships; similar organisms have similar dNA structure, how something is made function, how something works studying embryos shows relationships; similar organisms have similar embryos body parts with similar use / function and different structure; in organisms with a very distant genetic relationship body parts with similar structure and different function; in organisms with a somewhat close genetic relationship small or incomplete body parts that are no longer of use to the species human wisdom teeth and appendix an energy-producing protein molecule common to most living organisms building blocks of protein forming new species all of the variety in the number of species on Earth Kingdoms - 6 Phyla - Less than 100 Classes - Hundreds Orders – 1000’s Families – tens of 1000’s Genre – hundreds 1000’s Species - ~14 million the study of evolutionary relationships between organisms Organisms in same group share characteristics. The closer on the “tree,” the closer related. inherited characteristic (structure or behavior) that helps a species survive The hummingbird has a long pointed beak to reach deep into flowers. When startled, the cat rears up to look larger. protect young attract a mate disappearance of a species when the last member dies says that nature picks the better traits, and less helpful traits become less frequent in a population; “survival of the fit enough” peppered moths says that only those most suited survive to produce offspring species change: a physical barrier divides a population Grand Canyon squirrels have developed into two separate species species change: groups breed at different times Species #1 Bower bird courts mates with an upright nest decorated in bright blue items. Species #2 Bower bird courts mates with a tall towering nest decorated with charcoal species change to fill all niches when there are few competitors birds develop different shaped beaks, depending on their favored food source the environment forces different species to develop similar characteristics Sharks (fish) and dolphins (mammals) both have fins similar species become less alike Long term gradual change long periods of stability and short episodes of change coloration that helps an organism blend into its surroundings. One species evolves traits to resemble another species The monarch (left) viceroy (right) looks very similar, but taste different to predators. Viceroys benefit from birds’ avoidance of monarchs. A population changing over a long period of time Extreme traits are favored Population is divided into two distinct groups More than one organism of the same species in a given area Human choosing “best trait” for offspring from male/female Certain organs become developed because of an environmental need Extreme phenotype is favored, causing allele frequency to shift over time. Finding absolute age of a fossil using carbon 14 Finding an estimate of age bases on the layers the fossils are found in
