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What does a wildlife biologist career involve?

The responsibilities of wildlife biologists vary depending on the sector in which they choose to work. A wildlife biologist may choose to work in research, trapping and tracking various types of animals, or they might review data collected on animals to learn more about how they live, interact and migrate. Wildlife biologists may need to communicate and collaborate with their colleagues regarding the findings of their research to obtain funding for additional research or to make decisions about how to manage various wildlife issues. In some situations, a wildlife biologist might work in an edu..

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What are the effects of lack of oxygen to the brain?

According to New York University, many conditions can lead to a lack of oxygen to the brain. Any failure of the respiratory system, whether due to injury, toxins (such as carbon monoxide), drowning or smoke inhalation can reduce the amount of oxygen entering the blood and thus reaching the brain. Disruptions to blood flow, including the blockage or rupture of blood vessels or cardiac arrest can also keep oxygen from reaching to the brain.\nNew York University states that diagnosis of a lack of oxygen to the brain involves a number of different tests, but the most important factor is medical hi..

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What is the average lifespan of a smoker?

Smokers have a death rate approximately three times higher than the rest of the population, said a study published in the New England Journal of Medicine. Most of these deaths were the result of "neoplastic, vascular, respiratory, and other diseases" caused by smoking. According to the Centers for Disease Control and Prevention, smoking is the "leading preventable cause of death in the United States" and causes more than 480,000 deaths per year. Smoking doubles one’s chances of a heart attack or stroke and increases one’s chances of developing lung cancer by 25 times. Quitting will drastic..

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What purpose do the cortical nephrons serve?

The cortical nephrons are located in the outside edge of the kidney and are distinguished from the juxta-medullary nephrons located at the cortico-medullary junction. Each nephron is composed of two structures, a glomerulus and a kidney tubule. The filtering of blood occurs at the glomerulus, while the tubule transports the waste products and recyclable fluids.

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Why do germinating seeds undergo cell respiration?

Seeds stay dormant until they experience the right temperature and moisture conditions to germinate. Under the right conditions, a seed absorbs water and swells, activating enzymes that increase cellular respiration. Respiration happens in the mitochondria and cytoplasm of the seed's cells.\nThe seed's stored food is then converted into energy. The seed's cells grow and cause the seed coat to split. The root shoot grows out of the seed coat, anchors the seed in soil, and absorbs nutrients for further growth. Without the increase in cellular respiration, the seed stays dormant. O..

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How can one make a model of the tundra biome?

Students and teachers who want to build a model of the tundra biome should select a specific part of the tundra and a specific season to represent. Even though this biome is most closely associated with winter, tundra do experience seasonal changes, although some parts of the tundra may never experience full snow melt. The colors and animals associated with the season should be identified in order to assemble the proper materials. Different colors of paper, paints, clay, small models of tundra animal inhabitants (such as arctic hares and polar bears), scissors, glue and even real moss or rocks..

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What are some reactions that can be performed with household chemicals?

Baking soda, a base, and vinegar, an acid, fizz on contact with one another, producing carbon dioxide and water. The addition of liquid soap to the reaction traps the gas bubbles and forms foam.\nWhite glue and borax react to form a malleable, putty-like material. White glue contains long chains of molecules, or polymers, of polyvinyl acetate. When mixed, the borate ions from the borax begin replacing acetate groups in the glue, forming links between the polymers to create a three dimensional structure. The result is soft solid that holds its shape for a short time.\nThe juice of red cabbage ..

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What is another name for the representative elements?

The representative elements are found in Groups I and II, which are on the left side of the Periodic Table, and Groups III through VIII on the right side of the table. These elements include the alkali metal group, alkaline earth metals and chalcogens.The elements in each group share the same characteristics. For example, alkali metals are soluble in water and easily cut with a knife. Alkaline earth metals are harder than alkali metals, and they are not as reactive with oxygen.

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Why does atomic radius change as it does?

The two major trends in atomic radii size seen across the periodic table are a decrease when traveling from left to right and an increase when traveling top to bottom. Each is explained by the specific interactions of electrons and protons. Traveling from left to right across a period of elements on the periodic table increases the number of protons and electrons simultaneously by one. The negatively charged electrons are added to the outermost electron shells first and become strongly attracted to the positively charged protons in the nucleus. As the number of electrons and protons increase, ..

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How much does a roll of nickels weigh?

By comparison, a roll of pennies is equal to 2.5 grams times 50 in a roll, which comes to 125 grams or 4.41 ounces. A roll of dimes is 2.27 grams times 50, which comes to 113.5 grams or 4 ounces. A roll of quarters is 5.67 grams times 40, which comes to 226.8 grams or 8 ounces.

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