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❶Cholesterol is a lipid. How do the skeletal and circulatory system work together?

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Acceleration is defined as a rate of change of the velocity of a moving object: When an object moves What is the difference between mitochondria and plastids?

A plastid is not necessarily a specific cell organelle in the way that a mitochondrion is. A plastid is a category of organelle. A chloroplast would be a specific type of plastid, but not all What happens when copper is treated with dilute HCl? Questions of this kind typically require you to identify the type of reaction that could potentially occur, then use published reference material on that type of reaction to determine whether the What is the difference between the skin of animals living in cold regions and the skin of those Animals that live in extreme climates have physical characteristics that help them survive in harsh environments.

Their skin, as well as their fur or feathers, serves as an insulator and thus acts Give any two uses of folic acid. Folic acid is a form of the water soluble B vitamin. It can be found in foods such as dried beans, oranges, peas, lentils, various whole wheat products bread, pasta, etc. What would be the consequence of hemoglobin deficiency in our body?

Hemoglobin is a protein that carries oxygen throughout the body. The protein is found in red blood cells, and the amount of hemoglobin from person to person is variable. The amount of hemoglobin How are nucleic acids related to proteins? You probably know that DNA contains the "instructions for life" and that our genes determine many of our characteristics. You may or may not know that the expression of inherited characteristics is For the following, determine whether the information is accurate, precise, both or neither Accuracy and precision are two terms used often in science.

Accuracy is the closeness of a measurement to the standard or true value. For example, if you measure the length of a 30 foot wall and What is one key development that separates reptiles from amphibians? There is more than one key development that separates reptiles from amphibians, and I do not think it is possible to single out only one key difference. In general, the reptile characteristics that Why should people consider becoming vegan? There are several reasons many people might wish to reduce their reliance on animal products or become totally vegan.

The first reason is ethical. Many people believe that killing other living What is an example of a poor conductor? A material can be a poor conductor of heat, electricity, or both. A poor conductor means that the substance will not easily conduct heat or electricity or both as easily as a conductor.

What are some uses of bacteria? All too often, people assume that bacteria are bad and always bad. It is not well known that only a very small percentage of bacteria are harmful to humans. The rest of bacteria are either Can physical and chemical changes happen together? Yes, the physical and chemical changes can occur together. An example is the burning of a candle. When the candle burns, the wax melts and the wick burns. Even though the wax melts, it still stays Who is the father of science?

There is really no single answer to this as different writers apply the term father or mother of science to different historical figures. Even more importantly, most serious historians of science The Earth is a sphere composed of four layers.

The innermost layer is the inner core, the center of the planet made of solid metal. The inner core is surrounded by the outer core, which is made of How is the plant kingdom useful to us? Simply post your question and get it answered by professional tutor within 30 minutes. Science allows discovering wonderful things about the world we live in. There are several ways of studying it: Science is versatile as it includes an overwhelming variety of disciplines, so everyone can find something they are interested in.

People loving outer space will enjoy astronomy. Students curious about evolution will definitely like biology. People worried about the environment will be interested in ecology. The world is fascinating and studying it should be an exciting journey, not an academic nightmare.

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