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Human Variation

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High altitudes disrupts homeostasis in that it can limit a person's’ ability to accomplish easy tasks, such as walking or climbing, can cause dehydration, and can cause hardships in breathing. This is due to the fact that in higher altitudes, the atmosphere is less dense, therefore the molecules are farther apart, making it more difficult to breath. In higher atmospheres as well, our heart has to do twice the work in order to get oxygen into our lungs, which can be a lot of stress for some people and make them feel fatigued.  1. Short Term A short-term adaptation would be when our heart pumps harder in order to get oxygen into our lungs. Image #1 Facultative A facultative adaptation would be “the increase of oxygen carrying blood cells.” This is an adaptation that occurs genetically and this trait will continue as long as someone needs it when living in high altitude habitats. Developmental: One way humans have adapted to high altitude would be by “dev...

Piltdown Hoax

The Piltdown fossil was found around 1907 in England and presented to the world in 1912, but it later turns out that it was a hoax and Charles Dawson was the one responsible. It was not until 1953, that scientists realized it was a fraud.  It was only when a scientist at the University of Oxford used their new technology to discover that the bones were different ages.  The “supposed” scientific significance would have been that it would supported the hypothesis that humans evolved from apes. The response from the science community was diverse where some believed that the fossil was genuine, while others criticized it because they were not sure that the jawbone and the skull belonged to the same creature.     Some of the faults that contributed to the negative impact to the scientific process was greed, jealousy, and pride. In Germany, Spain, and France, many Neanderthal (evidence of early man) were being discovered in large quantities and Britain was starting...

Analogous Species

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Bats are in the mammal group, and not birds, even though they both have wings and are capable of flight. Both of them obtained their wings through many years of natural selection, but this occurrence occurred individually in each lineage; therefore although both wings share a similar purpose, their bone structure is different. Bats and birds do not have a common ancestor from their wings, but they do have a common ancestor from their forelimbs. Analogous means that the trait has a similar purpose, but different origin, while homogony is vice versa. Homogeneity means that the traits have different purposes and look different, but have the same origin. Works Cited Homologies and analogies . N.p., n.d. Web.

Homologous Species

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The two species that possesive the homologous traits are cats and whales. Cats have four legs with a similar bone structure to humans as well as the similar bone structure to the fin of the marine animal, whale. The structure of the fin and leg are the same, but as you can see in the image above, the whale has a wider humerus, ulna, radius, and carpals, and has longer phalanges. Although their structures are the same, their functions are different. Cats use their hands in order to be mobile on land and their paws allow “ act as shock absorbers for jump-landings” , while whales use their fins to stabilize themselves so that they do not roll around in the water ("Structure and Function of the Claw and Foot Pad in Cats" 2015).  The common ancestor for both whales and cats, along with humans and bats, is the placental mammals, which “weighed between 6 and 245 grams,” and lived about “1 00 million years ago,” right after the dinosaurs became extinct (Wong "Mee...

Protein Synthesis

Decode the following: GCCGTACTAAGAGCGGACATGCAGTGGACGTACGTGCATCATTG

Scientific Method (Assignment #1)

It is possible that the student is falling asleep in class because he is sitting in the back of the classroom. Test: I would test this hypothesis by asking the student to relocate to the front of the classroom, near the professor. If the student stayed awake, this would support my hypothesis that his location in the classroom caused him to fall asleep. If the student fell asleep anyway, it would suggest that my hypothesis was falsified.    3. An example of an untestable, unfalsifiable explanation would be that an invisible sorceress  cast a sleeping spell on him every time he was in that particular class at that particular time.

Stranded on an Island

If I was stranded on an island, the two items that I would bring with me are a water purifier and a shotgun. I would use the water purifier so that I could always have access to clean water and use the shotgun for hunting animals in order to eat.