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Boot Camp 2020-2021 Assignment #3 Video

Added Apr 21, 2021 •

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Please watch this video and complete the corresponding Assignment #3 worksheet packet

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perhaps you looked around and marveled at the Variety on Earth plants and animals perfect fish birds. Are all able to leave offspring in this program has played in populate the Earth our planet it's roughly four and a half billion years old and although some three and a half billion years ago fossilized prokaryotes single-celled organisms arose in Earth's waterways keep in mind these life-forms are considered they still carried out and cellular respiration has been obtained by examining the fossil record fossilization is a slow and a small organism that hardens into Amber Frozen or when sediment If an organism is in or near water can can occur soft tissue is minerals or completely replaced the organisms are somewhere similar to what others were so strange that ever existed creation as described in the Book of Genesis the animals were their roles perfectly is yours cuvier is largely responsible for the field of paleontology sedimentary rock forms layers cuvier sign succession speech area these varied organisms were fossil nearest Care Now open habitat in 1809 published play Mark felt that organisms were able to evolve in response and then able to pass this on to their young for example a giraffe could lengthen its neck over years of raising the upper parts of trees reproduce The Beneficial quality it developed over the years in this case a longer neck in December of 88 Ford was a young naturalist named Charles Darwin Darwin which is the taping of Earth features by very slow process has named James ancient Earth one much older than described by Leading theology Earth was only 8 years old it was in this frame of mind and Lamarck's views on evolution and open to the idea of an ancient Earth that Darwin and the Beagle came up on the Galapagos Islands exotic plant such as is on Earth please play the animals America environment for instance Darwin document is 13 species of Finch small area return to 36 the Darwin brought together what he observed it's a long. Of time about the planet then couldn't. time Darwin on evolution in 1858 another natural need Alfred Wallace prepared a paper describing paper it wasn't On the Origin of Species by natural selection and forever changed our world published the idea of evolution and it was obvious that something had happened organism the oldest known fossils were small hard-shelled water organism reptiles birds and mammals appeared next Darwin felt that evolution of a species was carried out a term natural while Evolution was fairly why was Darwin's idea of natural selection even Darwin himself could not explain how natural selection worked in the early 90s or Mendel we're finally studied were revealed additional researchers understanding of genetics understanding principal resource water and space this results available resources prediction the individuals best adapted to their environment are better able to obtain these resources survive and reproduce trades or more specifically the genes that code for them are passed On to the Next Generation at this point over the course of a lifetime can occur today we know that the gene is the basic unit of heredity genes are distinct segments of molecules known as nucleic acid each strand of DNA is tightly called a chromosome chromosomes the only difference is chromosomes are arranged did you know of an organism is its Nick makeup some looks like when the Genome of it codes for the proteins that are needed to make in a diploid organism is humans both parents to their offspring do you have 46 chromosomes in every cell from each parent there are different forms of a gene for any given trait and they are called for instance there isn't just for hair color if there were or have red hair there are several hair color and the color of your hair every the precise location Beach lockers if you have identical alleles at these two loci you are homozygous for that trait other hand benefactor if one allele is dominant over the other turistic of the first Express for instance those individuals suffering from dwarfism play me also have one copy of if two wheels and the resulting phenotype is it in some flowers if you cross red with the resulting Offspring mixture of the two if two alleles are codominant both traits are expressed in the phenotype of 1 + 1 their surface although it's real individual carry however work as environmental factors interact with variation found population serving trays individual over a. Of time a classic example of natural selection in action with the English peppered moth the peppered moth into color variations light with dark speckles as with many moths this species is nocturnal during the day it rests on trees and rocks that are in a light-colored like in the area birds of prey on Brown are more easily Spotify and therefore much less likely to survive and reproduce the gene for dark coloration is harshly select environment and dark colored moths are rare show Revolution to England when the predominant a trait that and the frequency for dark pigmentation Rose in the population the logic behind place the milyer to all of us broccoli cauliflower Sprout common ancestor characteristic this is artificial selection natural selection is fake basic form in directional selection favorable and the population giraffes at some point in history and survive and reproduce overtime the trait of long neck became very frequent and older adaptations are no longer under the new conditions a second type of natural selection is stabilizing in stabilizing selection is favorable if a field mouse is too small it may be too weak to borrow the cold of winter the average size male selection is a stable environment surroundings the final type of natural selection in this very rare form of natural is more favorable than the average phenotype of this parade supposed to possible colorations very light if both the light and dark variations minutes poisonous or bad tasting insects if an average median free individual it is important to note that what happened and producing this represents microevolution the frequencies of alleles in a population gene pool the frequency of the allele for dark pigmentation increased over time now that you know what is microevolution is are some of the causes the frequencies of alleles in the bottleneck effect some disaster randomly reduce population very small number the disaster may be natural such as a volcano slide overhunting of California sea otter is reduced this number of individuals most likely population members the founder effect a small population area and is cut off from the rest of the pool different frequencies population this group is representative weather are all causes of microevolution cold sore or water dispersion may change the frequency Wheels mutation genetic sequence and can be passed to a sperm or egg cell this is the rare event for a million the average male produce up to Williamsburg non-random mating involved what's the population of Ellis van creveld syndrome is an example of this effect two generations of breeding in the same population differ from Ellis be characterized by and six fingers per hand has risen to a level in this Amish community natural selection the only natural heritable variation is there for the Wellspring of evolution it is no variation found for any given trait that natural selection environment variation quantitative variation is measured in degrees such as height in normal individual has more than one controls this discrete variation is controlled by one Gene and results either you have to read codes for earlobe attachment and your earlobe is attached for you have at least one dominant allele and your earlobe hangs freely the two main sources of variation and recombination pun examples it's red blood cell contains hemoglobin molecules carbon dioxide a mutation has resulted in the placement of an incorrect amino acid molecule please miss happen cells clock small vessels and are ultimately destroyed by the liver sickle cell anemia remains in some parts of the world recombination results in most of the variation found population sexual reproduction chromosomes combinations of chromosomes possibilities during meiosis homologous chromosomes with one another and can exchange portions of DNA this results in Spring receiving chromosomes that are different than those found apparent if natural selection favorable it's not the reason lies in the fact that organisms dude avoiding which kills most of its victims only when I'm with another carrier Beatles Come Together through heterozygote protection variation can also be preserved by natural selection in the form of polymorphism polymorphous give an advantage to individuals who are heterozygous for over there recall the example of sickle cell anemia hemoglobin present in a gene pool malaria is a trophic by mosquitoes River has red blood cells individuals who are much less. then or individuals coffees disease is a major selective factor and by being resistant to malaria heterozygous Fitness is measured in is an organism more offspring is considered more fit than an organism spring in parts of the animal kingdom there is pressure to not only survive to also it is only the largest and most powerful males that are able to breathe often this pressure to reproduce is in direct conflict environmental factors colorful to attract predators so even if are you overtime how does this lead a large species of interbreeding individuals a successful species is well adapted to its environment in the rare event of new earring they tend to be washed out by the sheer number of alleles found in the gene pool small population from the larger chairs changes are more likely to occur this is what happens during allopatric allopatric speciation members become barriers this isolated populations group if this population is living and the rest of the species natural selection a small population may require only allopatric speciation Darwin encountered in America subsequent developed or the emergence of multiple the time frame over which Evolution takes place Issaquah emulations punctuated equilibrium it is evolution occurring rapidly in the development very long. A combination of most accurate paleontologist is there a what Archaeopteryx Germany it was the first organism caliber the fossil record is very incomplete so how do after ages can be determined index fossils are normally hard-shelled for organisms that are in one liter of rock distance is a from one another but other more precise paleontologist Radioactive this is known as half life time it takes for 50% of the original carbon-14 to carbon-12 years of carbon-14 10700 years it would have only a half a gram remaining amount and after another 5,700 years only 1700 years a half of the remaining carbon-14 carbon-14 the older it is carbon 14 years old others or the rock surrounding them an element commonly used to date fossils is potassium-40 decays to argon-40 it has a half life of 1.3 million years although not completely accurate absolute dating provide an estimate of how old is is microevolution is evolution on the smallest scale one of the main sources of macro-evolution is the development of new if you look at the functions of the forelimbs of a bat different menus for walking although these phone is are very different structures is remarkably similar the same bones are found in all four organisms has adapted to its purpose is in a common anatomical natural selection and move evolution take the example of flight each step along the path from would be marked with precursors to pray and Feathers used or information further favor the forelimb of a man and ACL are derived from a common ancestor homologous structures Empire factors are different species insects and birds that can fly the wings of insects and birds there are no bones or environmental arise through convergent evolution homologous structures organs and embryological development vestigial organs are structures that were once of importance useless even though they can't because their ancestors and therefore so similar artists pictures that are present in the embryos of many organisms are on Earth you can also show how closely related cytochrome C is a protein found in all air breathing organism the DNA that codes for this protein is very similar in primase cytochrome primates are related to two more variation between fish DNA more closely related primate this isn't DNA comparison record Mark Earth passed most of her me in as well as the Cretaceous Extinction masks shortly after the Permian Extinction the first dinosaurs the dinosaurs mammals that existed with Dinosaurs it is hard to imagine how mammals attain the status and how different would like if Purgatory is the one. environment the Earth's crust continental drift North America away from Europe per year the continents slowly formed from one supercontinent known as Pangaea about 250 million years ago this resulted in the environment many organisms part responsible conversely very abrupt an asteroid striking the Earth a band of iridium an element on Earth Comet and asteroid the world. Whether it occurs gradually or Swift great impact on our planet or greatly reduced in number over the years only recently Have We Become concerned ability to change with all of our power and Technology for these reasons and others suspect regardless of natural selection

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