These changes were abrupt and not observed by anyone. Thus the legs got elongated and toes reduced. These creatures were herbivores, and once their habitat changed into grassy pastures, they needed to graze faster and cover more ground faster. Another example is the evolution of the horse (Equidae) from dog-like creatures. However, macroevolution is something huge like evolution of life from water, evolution of birds from dinosaurs, or evolution of feathers. Or the same parents having one child with brown hair, black eyes and the other with black hair, brown eyes. Some have predominant white and less black. A black-and-white dog has pups which are black and white. For example, one litter of a dog having pups of different shades. It is considered to be contained to a small part of nature, i.e., the gene pool of a specific species, the variations occurring within a small portion. Microevolution is believed to be evolution within a species and its gene pool. Macro and microevolution are studied separately. This includes gross productivity, unemployment rate, inflation, etc. Microeconomics is called price theory as it basically focuses on the prices of goods and services whereas macroeconomics focuses on the economy of the nation. “Micro” deals with a particular industry or particular sector, the relationships of firms and households within the market whereas “macro” deals with economics which is related to the nation as a whole on a large scale like the gross production in a year. In economics, the whole field has been divided into two macro and microeconomics. We will try to differentiate between “micro” and “macro” on the basis of different examples from different fields. The list goes on, but all these fields or areas have some basic similarities in reference to “micro” and “macro.” For example, the differences between micro and macroeconomics, the differences between micro and macrolenses, the differences between macro and microevolution, the differences between micro and macroanalysis, and the differences between micro and macroinfluences, microclimate and macroclimate. There are many macro and micro systems which have their own definitions, explanations, and differences. Replacing saturated fats and trans fats in the diet with unsaturated fats has been shown to decrease the risk of developing heart disease.The basic differences between “micro” and “macro” is that macro is on a large scale and cannot be observed while micro is on a very small scale and can be observed or identified. Trans fats – found in commercially produced baked goods, snack foods, fast foods and some margarines.Unsaturated fat – found in foods like olive oil, avocados, nuts and canola oil (plant sources).Saturated fat – found in foods like meat, butter and cream (animal sources).provide foods with flavour and texture.assist with absorption of the fat-soluble vitamins A, D, E and K and carotenoids.supply fatty acids that the body needs but cannot make (such as omega-3).In addition to supplying energy, fats are needed to: It is recommended that 20–35% of our daily energy requirement should be supplied through the consumption of fats and oils. Why do we need fats?Īlthough fats have received a bad reputation in relation to heart disease and weight gain, some fat in the diet is essential for health and wellbeing. However, by eating a variety of plant sources, the essential amino acids can be supplied. Protein in the diet that comes from animal sources contains all of the essential amino acids needed, whereas plant sources of protein do not. The other amino acids can be synthesised by the liver if not provided by the diet. Eight of these amino acids are described as ‘essential’, which means that the food we eat must contain proteins capable of supplying them. As starting materials in the production of other compounds needed by the body.Īll the proteins in the body are made up of arrangements of up to 20 different amino acids.As ‘building blocks’ in the production of ‘new’ proteins needed for growth and repair of tissues, making essential hormones and enzymes and supporting immune function.The body can then use these amino acids in 3 main ways: The proteins we consume as part of our diet are broken down in the gut to amino acids. It is often referred to as ‘dietary fibre Why do we need proteins? Although unable to be used as an energy source, this type of carbohydrate plays a very important role in maintaining the health of the large intestine and assisting with the removal of body waste. For example, cellulose is a non-digestible carbohydrate present in fruits and vegetables. Not all of the carbohydrates found in foods are digestible.
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