range of shapes‚ ranging from spheres to rods and spirals. Bacteria are ubiquitous in every habitat on Earth‚ growing in soil‚ acidic hot springs‚ radioactive waste‚[2] water‚ and deep in the Earth’s crust‚ as well as in organic matter and the live bodies of plants and animals. There are typically 40 million bacterial cells in a gram of soil and a million bacterial cells in a millilitre of fresh water; in all‚ there are approximately five nonillion (5×1030) bacteria on Earth‚[3] forming a biomass on
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2: THE AIR WE BREATHE Purpose/Aim To determine whether air occupies space and whether it can be moved and/ or removed. Introduction Air is a mixture of gases that composes the Earth’s atmosphere (NASA‚ 2015). Like all matter air has properties; one of which is weight‚ in each tiny air particle‚ there is a diminutive bit of weight. This weight is influenced by the pressure and temperature conditions surrounding the air. Air is also invisible‚ we can see through it as the particles of air are too
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that we understand all of the physical effects of anabolic steroids‚ we must look into the mental effects of anabolic steroids. After noting all the physical effects that anabolic steroids have on the human body‚ one must not forget the many mental effects that anabolic steroids have on the human body. Studies have indicated that when used in high amounts‚ anabolic steroids cause an increase in irritability‚
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form compounds to become more stable‚ which happens when the maximum number of possible electrons are in the outermost energy level. Carbohydrates: A carbohydrate is one of the elements of the 5 major compounds‚ dealing with the making of an human body. To define the word any of carbohydrates class of organic compounds that are polyhydroxy aldehydes or polyhydroxy ketones‚ or change to such substances on simple chemical transformations‚ as hydrolysis‚ oxidation‚ or reduction‚ and that form the
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lamp air bubble Apparatus used to investigate the rate of transpiration 1.1 1.2 1.3 1.4 State a hypothesis for this investigation. Name the apparatus used in this investigation. What is the significance of the tap? Explain TWO precautions that the learners must take to ensure that the results are reliable. In the investigation on transpiration‚ measurements of the distance travelled by the air bubble in the capillary tube were taken every minute. The opening of the capillary tube had an
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Chest Tube Insertion‚ Infant A chest tube is a thin‚ flexible tube that is inserted into the space between lung and chest wall. Air or fluid can collect in this space and cause infants to have breathing trouble. Infants at risk for this complication include those who: • Have lungs that are not fully developed at birth. • Breathe in stool during the birth process (meconium aspiration). • Need to be on a machine to help them breathe (ventilator). • Have surgery on the heart or lungs
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THE ORGANISATION OF THE HUMAN BODY By Rachel Bull CELLS The organelles of cells and their function • Cell (or plasma) membrane - The plasma membrane acts as a boundary and controls what substances can enter and exit the cell. • Cytoplasm - This semi-fluid substance found inside the boundary of the cell and outside the nucleus cushions and protects the internal organelles‚ this is also where the majority of the chemical reactions happen. • Nucleus - The nucleus is the double-membraned central
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authors actually experienced living in the culture of both places and developed relationships with the people they met. They were able to develop a point of view that no one would be able to without actually experiencing what these people experience. It gave us as readers a real look at what goes on in these cultures and we were provided with details that would only be picked up by actually being there. I think this makes the books more interesting and easier to learn from. Lila Abu-Lughod lived with the
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organic molecules are carbohydrates‚ lipids‚ and proteins. Carbohydrates contain carbon‚ hydrogen and oxygen with a ratio of 1:2:1‚ this means that for every 2 hydrogen atoms there is one carbon atom and one oxygen atom. They are necessary for the body to function properly because they provide the fuel that burns to produce energy. Carbohydrates come in the class of either a monosaccharide‚ disaccharide‚ or polysaccharide. Monosaccharides are the simplest form of a carbohydrate‚ disaccharides are
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What affect does exercise have on these parts of your body? Heart‚ Lungs‚ Muscles‚ Joints and Body Temperature? After exercise‚ you’ll find your body experiences immediate and more gradual effects. The minute you start training‚ you’ll notice more frequent muscle contraction‚ raised body temperature and pulse‚ and deeper breathing known as tidal volume. Longer-term effects occur as the body adapts to regular exercise‚ including your heart getting larger‚ bones becoming denser and the vital capacity
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