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How do skeletal muscles contribute to homeostasis?

The human body is designed to operate at a rather narrow temperature range of approximately 98.6 degrees Fahrenheit. If the body’s core temperature rises far above this or falls far below this, the body can stop functioning properly. To provide some insurance against these temperature variations, the skeletal muscles help transport the human to a place with a more moderate temperature. Alternatively, the human could use their skeletal muscles to build a shelter or light a fire. However, in circumstances in which a human has no way to escape the cold temperatures, the skeletal muscles begin s..

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What is the scientific name of the white-tailed deer?

While a small number of female white-tailed deer have antlers, males are known by their antlers and grow them each year. The points on the antlers of a white-tailed deer are an indicator of age, but they are not definitive age markers. Deer are opportunistic eaters that consume a variety of plants, leaves, legumes, grasses, fruit, corn, acorns and other foods in their various habitats. Deer also feed on birds and field mice.

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What is the average rainfall Orlando, Florida, experiences per year?

February, June, July, August and September is the rainy season in Orlando and other parts of Florida. On average, August is the wettest month in Orlando and historically receives more rainfall than any other month, while July has the greatest number of wet days. The five-month period from May through September is the hottest time of the year in Orlando, with July being the warmest. January is the coolest month in Orlando, and November is the driest.

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What type of information is available on Earth911?

Earth911's website states that their recycling directory "provides 16 million ways to recycle 350 materials." Users can search for where to recycle such items as cell phones, electronics, automotive parts, paper and paint. Just type the material to recycle and city or zip code into Earth911's search engine to see a list of recycling possibilities.\nThe website of Earth911 also includes recycling guides and Earth911TV. The guides advise how to prepare materials for recycling and how to reuse products difficult to recycle. Earth911TV includes videos that, like the articles on the web p..

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How do you determine the base sequence of a complementary DNA strand?

The reversal of the complementary DNA sequence is a matter of convention. DNA sequences are written from the 5' ("five prime") to 3' ("three prime") ends, but if the complementary sequence is written down opposite the original DNA sequence, it runs from the 3' to 5' ends.\nThis technique can also be used to determine the mRNA that is transcribed from a particular stretch of coding DNA. The only difference is that when writing an RNA sequence, the T, thymine, is replaced with U, uracil. Typically, the RNA sequence is identical to the coding, or "sense," strand of DNA with th..

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What is the end product of protein metabolism?

Nitrogen is essential to biological functions, and its utilization through protein metabolism yields waste products. Uric acid is produced by the breaking down of substances known as purines, which are found in food. Ammonia is produced when the body performs the synthesis of amino acids and nucleotides, which are genetic materials essential for the creation of new life. The accumulation of these substances are removed through the body's excretory system when necessary.

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What are some earth science lab activities?

To study the density of fluids, gather corn syrup, vegetable oil and water. Before conducting the experiment, predict which liquid is the most dense. Pour all of the liquids into the same glass container, and then observe that the most dense liquid sinks to the bottom of the container, while the least dense liquid rises to the top. To calculate each liquid's mass, weigh each liquid, and divide the weight by the liquid's volume.\nFor a lab activity on hurricanes, chart the hurricane season by first reviewing government data of past hurricanes. Then extract the data into a spreadsheet,..

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What is a dependent variable in biology?

The dependent variable is an aspect in an experiment being tested by the scientist. The independent variable is altered, which in turn changes the dependent variable. For instance, if a scientist wants to observe the effects of light on a moth, the intensity of the light is changed. The light intensity is the independent variable; it is changed by the scientist. The effect of the different light intensities on the moth is the dependent variable. It depends on the light intensity or independent variable. When the independent variable changes, so does the dependent variable.\nAnother example of ..

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Are plants prokaryotic or eukaryotic?

Plants are one of the groups of multicellular eukaryotes with cell walls. The other are fungi. Unlike fungi, plants' cell walls are composed of cellulose. Together with pressure in their extremely large central vacuoles, these cell walls let them keep their shape, unlike animal cells that rely on internal protein skeletons to maintain their shape. Plant cells lack the centrioles and lysosomes found in animal cells.

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Why is pH important to living organisms?

The normal pH of human blood is slightly basic at 7.4. Illness and environmental factors affect normal blood pH. If the individual is having difficulty breathing, carbon dioxide builds up in the blood leading to acidosis. The dissolved carbon dioxide lowers the pH of the blood. Untreated, the condition becomes dangerous to the individual. On the other hand, an increase in bicarbonate or low levels of carbon dioxide in the blood leads to alkalosis. The change in blood pH causes muscle twitches and fatigue. Untreated alkalosis sometimes progresses to paralysis or death.\nThe pH affects the funct..

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