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Search results 10581 - 10590 of 12257 matching essays
- 10581: The Application of Fractal Geometry to Ecology
- ... species, decreases beta diversity, and increases landscape undersaturation (Palmer 1992). Increasing the fractal dimension of the landscape allows more species to exist in a particular area and in the landscape as a whole; however, extremely high fractal dimensions cause fewer species to coexist on the landscape scale (Palmer 1992). Although many ecologists have found fractal geometry to be an extremely useful tool, not all concur. Even scientists who have used fractal ...
- 10582: The Praying Mantis
- ... only a single ear. The ear is made of a deep, 1 mm long slit with cuticle-like knobs at either end and two ear drums buried inside. The ear is specially tuned to very high "ultrasonic" frequencies of sound--25 to 60 kilohertz. Apparently, the ear is designed to primarily respond to the ultrasonic echo-location signal emitted by hunting bats. The mantis primarily uses its ultrasonic ear while in ...
- 10583: Life of Octopus Dofleini
- ... But the average size is only 100 pounds and 3m, still weighing in as the largest species of octopus. During their life span, many octopus fall victim to fatal, and non-fatal predation. Therefore a high percentage of octopus are mutilated or missing arms, this percentage increases in octopus that live in deep water, perhaps this is because older octopus tend to occupy deeper waters and would naturally have more battle ...
- 10584: The Language of The Cell
- ... a neuroendocrine reflex. It is interesting to note how a thermostat can be related to a neuroendocrine reflex. Home device ideas taken from bodily functions may turn out to be a useful tool in the school curriculum. Students could relate various abstract concepts to everyday household devices. Their is an old question of the relation between the simplicity and complexity in biology. During the course of evolution, rules about the theory ...
- 10585: Animalia Vertebrata Mammalia Carnivora Canidae Canis Lupus And Animalia Vertebrata Mammalia Carnivora Canidae Canis Niger
- ... other animals would ever travel in such wide-ranging parties made up of so few members. Within the past two decades, Americans have developed a longing and a want for wolves and dogs that have high proportions of wolf blood. People fall in love with the wild elegance of the animals and the affectionate interaction that can take place between them and the animal, but wolves being kept in the house ...
- 10586: Extinction of Dinosaurs
- ... theory was not widely accepted, but as more iridium was found from that period of time around the world, it became the leading theory. Other evidence includes the discovery of stishovite, a mineral created by high heat and pressure. These two minerals were most likely caused by a cosmic collision. Even more stunning, geologists have found a huge crater on the Yucatan Peninsula which is dated to be exactly 65 million ...
- 10587: The Effects of Foreign Species Introduction On An Ecosystem
- ... The zebra mussel provides food for a certain type of fish, and also contains several toxins because it is a filter feeder. The level of toxins in the fish due to the biological amplification is high. But if and when a new type of fish are introduced, which eats zebra mussels and provides a more preferred food for the fish which formerly ate the mussels, a new level of biological amplification ...
- 10588: Diverrsity of Plants
- ... of the egg within a pollen tube, which bursts, releasing them; they then swim to the egg, and fertilize it. Angiosperms The flowering plants dominate every spot on land except for the polar regions, the high mountains, and the driest deserts. Despite their overwhelming success, they are a group of relatively recent origin. Although they may be about 150 million years old as a group, the oldest definite angiosperm fossils are ...
- 10589: Detection of Biological Molecules
- ... choices like enriched flour. The only choices left was corn starch, glucose, and potato starch. Because of the low reducing sugar, glucose can be ruled out also. The starch content of substance #143 was very high. The protein content was around the 10% range, so potato starch would be a better guess then corn starch. But corn starch contained only a trace of fat when potato starch contained 0.8%. But ...
- 10590: The Effects of Antibiotics on Bacterial Growth
- ... assist in identifying them. The first two types of bacteria are archaebacteria and eubacteria. Both groups have common ancestors dating to more than 3 billion years ago. Archaebacteria live in environments where, because of the high temperature, no other life can grow. These environments include hot springs and areas of volcanic activity. They contain lipids but lack certain chemicals in their cell wall. Eubacteria are all other bacteria. Most of them ...
Search results 10581 - 10590 of 12257 matching essays
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