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Ice Age Extinctions Of The Megafauna
1,668 words... vironments than do smaller animals. Larger animals are safer from predators than small animals are, but it is also harder for them to sustain in trying conditions. Many of the larger animals such as mammoths and bison travel in herds, and that, along with their large size, protects them from predators. However, when the predator is Mother Nature, there is virtually no defense. For modern day elephants, drought is the biggest concern. It can take twenty percent of a herd every year, but the e...
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Body Hair Human Evolution
1,701 wordsHuman Evolution: the water theory. Elaine Morgan The crucial question about human evolution is why humans differ so strikingly from the African apes despite their close genetic relationship. Most Darwinists would agree that such differences are usually attributable to differing environmental pressures; and hence that our ancestors at some stage probably occupied a significantly different habitat from the ancestor of the gorilla and the chimpanzee. For the last half-century it has been generally ...
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Readers Digest W O
2,577 words... iru's that killed tens of thousands of seals in the north sea in the late 1980 's, and later caused the deaths of hundreds of stripped dolphins in the Mediterranean. They did not find any. Nor was there any suggestion that the dolphins had suffered from a parasitic disease or pollution. (Bonner 6) This is how they came to the conclusion it had to be nets because the dolphins didnt die from any disease, but had marks on them. The scientists then put two and two together and they figured out i...
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Pectoral Fins Lower Jaw
1,728 wordsThe hump-back whale gets it's name from the distinctive hump in front of the dorsal fin and from the way it raises it's back high above water before diving. They are a member of the order Cetacea. This order is of aquatic mammals and the hump-back belongs to the suborder of the Mysticeti. The Mysticeti are the baleen whales which have three families and several species. The family in which the hump-back belongs is the Balaenopteridae, the true fin backed whale. The thing that separates this genu...
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Carbon Dioxide Chemical Reactions
1,434 wordsEating, or ingesting food, is one of the main characteristics of the animal kingdom. Most of these animals metabolize their food at a rapid passe. But the metabolism of a snake is much slower then many other animals. This is due to one major factor. That is the temperature in which their bodies are. The metabolism works the same as other animals. It is just slower in a snake. The metabolism needs to be slower since the snake doesn? t eat very often. This paper will prove that a snakes metabolism...
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Central Nervous System Peripheral Nervous System
1,382 wordsThe ability to regenerate the tissues of the human central nervous system (CNS) is one of the greatest projects undertaken by biomedical engineers today. With this eventual technology, permanent paralysis and blindness due to CNS injury will be a thing of the past. Central nervous system injuries will be repairable, an idea that was, until recently, just a fanciful dream, something out of a science fiction novel. In the last few years, however, giant strides have been made to make the idea of CN...
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Praying Mantis Sound Waves
1,809 wordsThere is an abundant amount of animal species in the world. They all have adapted and evolved to survive in their surroundings. Some have grown fins, others legs, and some have wings. Each adaptation helps them to survive in the particular environment in which they live. Some animals that are members of the same species have adapted and evolved. One adaptation is wings, and they are normally thought to be a feature of birds. One of the only animals that has wings and is not a bird is the bat. Th...
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Lower Orbicular Muscles Sapiens Are The Only Mammals Female
1,041 words... straight downward, towards his feet (45). This nose structure helped to deflect the water from going up the nose of the ape when she went into the water. Darwin explains that eyebrows and lower orbicular muscles were used mainly for facial expression, Morgan agrees and also has another reason. She felt the female aquatic animals needed them to protect their eyes from the glare of the sun. She needed to be able to see her babies while they were in the water. The eyebrows protected from above ...
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The Fossil Record Of Order Chiroptera
710 wordsThe Fossil Record of Order Chiroptera Bats are the second-most species group of mammals. In some tropical areas, there are more species of bats than of all other kinds of mammals combined. Bats, small mammals of the order Chiroptera, are a diverse group of over 1000 species living around the world. The fossil record of bats is poor when compared with that of most other kinds of mammals. This is probably because of their small size, typically low population densities, and habitat selection. Their...
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Million Years Ago 65 Million Years
3,666 wordsIntroduction To Evolution What is Evolution? Evolution is the process by which all living things have developed from primitive organisms through changes occurring over billions of years, a process that includes all animals and plants. Exactly how evolution occurs is still a matter of debate, but there are many different theories and that it occurs is a scientific fact. Biologists agree that all living things come through a long history of changes shaped by physical and chemical processes that ar...
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Hind Limbs Cervical Vertebrae Cetaceans
803 wordsThere Cetaceans And Evolution Cetaceans There are many forms of cetacean life living in the worlds waters. How an why they came into existence is uncertain, but there have been many theories. Some say that dolphins are aquatic forms of goats, and others believe they evolved just like everything else, from a single cell, and not from an actual multi-cellular being. Because most cetaceans have some vestigial structures such as under-developed os coxae, the former of these two theories remains prev...
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Big Bang Theory Unicellular Organisms
4,830 wordsMacBeth In my short life on this planet I have come to question things that many take upon blind faith. We all know that we must some day die; yet we continuously deny the forces at work inside ourselves, which want to search out the answers of what may or may not come after. It is far easier for humanity to accept that they will go to a safe haven and be rewarded for their lives with pleasures and fantasies of an unfathomable scale than to question the existence of a supposed omnipotent being. ...
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Red Blood Cells Carbon Dioxide
1,614 wordsEffect Of Photosyntheses And Respiration On The Effect Of Photosyntheses And Respiration On The Environment Introduction: The environment can be defined as the surroundings in which as organism lives, including the climate, the physical and chemical conditions of its habitat and its relationship with other living things. Given the above understanding, it is therefore important that the right environment factors are in existence for some chemical reactions to take place. In the absence of optimum...
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Rest Of The World Rocky Mountains
1,394 wordsGive An Overview Of Life Through The Give An Overview Of Life Through The Tertiary, In Relation To Changing Paleogeography And Climate The tertiary consisted of two main epochs. The Paleocene, the Eocene and the Oligocene, which make up the Paleogene; and the Miocene and Pliocene, which make up the Neogene. The close of the Cretaceous Period marked a major transition in Earth s history. Ammonoids and marine reptiles disappeared from the sea. Marine taxa that persist as familiar inhabitants of mo...
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Millions Of Years Adipose Tissue
3,426 wordsHuman Evolution: the water theory. Elaine Morgan The crucial question about human evolution is why humans differ so strikingly from the African apes despite their close genetic relationship. Most Darwinists would agree that such differences are usually attributable to differing environmental pressures; and hence that our ancestors at some stage probably occupied a significantly different habitat from the ancestor of the gorilla and the chimpanzee. For the last half-century it has been generally ...
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Egg Laying Mammals Pouched Mammals Offspring
234 wordsThere are three groups of mammals; egg-laying mammals, pouched mammals and placental mammals. These three types of mammals are different for one main reason: reproductive methods. The egg-laying mammals lay eggs. The pouched mammals give birth to underdeveloped offspring. The offspring then spends time in the mothers pouch, and mature. The placental mammals keep their offspring inside them then give birth to a fully developed offspring The anteaters and spiny ant eaters were two separate kinds o...
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Deductive Reasoning Logical Thinking
1,524 wordsDo culture and individual beliefs affect logical thinking? If so, how do they influence the conclusions we reach? The first question that must be asked before answering this question is: What exactly is logical thinking? Logical thinking is the process in which one uses reasoning consistently to come to a conclusion. If this definition is strictly followed, logical thinking cannot be affected by any outside influences as long as the premises are truly valid. For example the syllogism: All mammal...
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Fossil Record Modern Science
974 wordsThe human mind is easily convinced on what the eyes tell the mind. If you see something in front of yourself, you might have an easier time believing, than if one was to tell a story. Religion is a story that has been told for thousands of years, and not till technology has ripened have scientists disproved many beliefs. It is now that mankind lets religion restrain the mind from portraying the truth about life. Some people claim that science does not have all of the answers when it comes to the...
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Pectoral Fins Lower Jaw
2,006 wordsTo look up into the mountains and see the steam rolling from a mountain stream on a cold winters morning is a beautiful sight. However, to look out over the horizon and see the white spray of salt water coming from the blow of a huge hump-back whale is much more exciting sight and a whole lot warmer. I lived in the mountains of Colorado for most of my childhood. The first time I had the opportunity to see the ocean was on a vacation to California, when I was about 15 years old. It was even bette...
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Million Years Ago Endocrine Glands
1,421 wordsHuman Biology and Evolution Humans are Alive The earliest human life form can be traced back more than 3. 5 billion years ago. Humans are said to be descendants of a single celled ancestor. Although they are different in size and shape all basic functions are alike. The more complex the organization of the cell became the more successful and developed it became. As these single celled organisms developed they became known as pre-humans. We share many characteristics with these pre-humans. Some o...
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