Author: Enlighten
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Why Does Urine Comes With Varieties of Colour and Odor?
Why does urine comes with varieties of Colour and Odor? The colour of urine varies from almost colourless to black. These variations may be due to normal metabolic functions, physical activity, ingested materials, or pathological conditions. A noticeable change in urine colour is often the reason that a patient seeks medical advice; then it becomes…
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Vegetative Propagation (Reproduction) of Plants.
Vegetative Propagation (Reproduction) of Plants. Vegetative reproduction is the use of the vegetative part of a parent plant to produce a new plant. It is also referred to as artificial vegetative propagation. These vegetative parts are mainly the stem, the root, and the leaf. Methods of vegetative reproduction The use of specialized vegetative plant organs.…
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Divisions and Classes of Kingdom Plantae.
Divisions and Classes of Kingdom Plantae. Land plants evolved from a common ancestor with multicellular, freshwater green algae about 450 MYA. During the evolution of plants, protecting the embryo, apical growth, vascular tissue for transporting water and organic nutrients, possession of megaphylls, using seeds to disperse offspring, and having flowers were all adaptations to a…
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Enlighten Knowledge Exam; Chemistry MCQS (set 4)
QUESTIONS 1. 3NH3 is A. Three moles of Ammonium B. Six moles of Ammonium C. Three moles of Ammonia D. Six moles of Ammonia 2. The following are physical changes except A. Melting of candle wax B. Freezing of water C. Rotting of leaves D. Dissolving of common salt in water 3. The abnormally high…
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Sample Subjective Questions on Viruses, Bacteria, and Archaea.
Sample Subjective Questions on Viruses, Bacteria, and Archaea. What are the two components shared by all viruses? All viruses have; a nucleic acid. and a capsid. Viruses are generally considered to be non-living. Should Viroids and prions also be viewed as non-living? Why or why not? Viroids and prions are non-living because, like viruses, they…
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Enlighten Knowledge Exam; Subjective questions on biotechnology and endogenous industries
What is fermentation? Fermentation is the breakdown of complex organic substances into simple ones by the action of an organic catalyst. State three important applications of fermentation. Brings about the rising of bread In the production of ethanol from sugar In the production of yogurt What is genetic engineering? Genetic engineering involves changing an organism’s…
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Know more about your enemy; VIRUS
Viral Evolution, Morphology, and Classification Viruses are tiny, acellular entities that can usually only be seen with an electron microscope. Their genomes contain either DNA or RNA (never both) They replicate using the replication proteins of a host cell. Viruses are diverse, infecting archaea, bacteria, fungi, plants, and animals. Viruses consist of a nucleic acid…
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Suffer no more; Menstrual cramps and fatigue
Suffer no more; Menstrual cramps and fatigue To reduce the intensity of menstrual symptoms, you can change your diet: Less sugar, and slightly more protein. Diuretic foods such as eggplant, cucumbers, and parsley can help diminish water retention. Calcium supplements (1 gram per day) and magnesium (500 milligrams) can help reduce anxiety (always take both).…
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Do you know, there is plant for each type of stomach problem?
Do you know, there is plant for each type of stomach problem? Aigremoine (Lithospermum ruderale) It is useful when the stomach problem is accompanied by enteritis, diarrhoea, and/or chronic liver infection. It also helps tone a lazy digestive system. And it also helps regularize acidity and soothe ulcers by improving metabolism. The leaves are taken as…
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The Resurrected Life
What is It All About? Death is very painful because of its ability to bring an end to life. That tells you that death is more powerful than life. That is how death can bring about the cessation of life. But there is another thing that is higher and more powerful than death: resurrection. That…
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How Plants Defend Themselves Against Pathogens and Herbivores.
Introduction Plants cannot run away from danger. Instead, they have to stand and fight. Like humans and other animals, plants are constantly threatened by an array of disease-causing viruses, bacteria, and parasitic fungi. In addition, plant roots are susceptible to attacks by nematodes and soil-dwelling roundworms. Disease-causing agents are termed pathogens. If plants were not…
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The Reaction Result From Mismatched Blood Transfusions.
The Reaction Result From Mismatched Blood Transfusions. A person’s blood type is determined by certain antigens found on the red blood cell surface. These antigens are clinically important because they must be matched between donor and recipient during a blood transfusion. ABO groups The protein–sugar complex on the surface of the red blood cells acts…
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How Pathogens are eliminated from the body and Why the Immune System Reject Foreign Tissues and Organs?
How Pathogens are eliminated from the body and Why the Immune System Reject Foreign Tissues and Organs? Introduction In combination with the leukocytes involved in the innate immune system, the cells of the adaptive immune system are almost always successful in eliminating threats from bacteria, parasites, fungi, and viruses. The many different mechanisms used by…
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Adaptive Immunity/Specific Defenses/Acquired Immunity.
Adaptive Immunity/Specific Defenses/Acquired Immunity. Adaptive immunity Adaptive immunity is a vertebrate-specific defense mechanism that recognizes specific molecules as being foreign and clears those molecules from the body. The foreign molecules recognized may be free, as in the case of toxins, or they may be on the surface of viruses or cells such as pathogenic bacteria,…
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Enlighten Knowledge Note; The Immune System (Innate Immunity/Nonspecific defenses)
Introduction: The body’s defense makes up the immune system, which enables an animal to avoid or limit many infections. The first lines of defense offered by immune systems help prevent pathogens from gaining entrance to the body. For example; An outer covering, such as skin or a shell, blocks entry by many pathogens. Sealing off…
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Enlighten Knowledge note; The Lymphatic System.
The Lymphatic System. The lymphatic system, which is closely associated with the cardiovascular system, has four main functions that contribute to homeostasis: Lymphatic capillaries absorb excess tissue fluid and return it to the bloodstream. In the small intestines, lymphatic capillaries called lacteals absorb fats in the form of lipoproteins and transport them to the bloodstream.…
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Animal Tissues; Types and Their Functions.
Animal Tissues; Types and Their Functions. Cells form a working animal body through their emergent properties, which arise from successive levels of structural and functional organization. Cells are organized into tissues, groups of cells with a similar appearance and a common function. Different types of tissues are further organized into functional units called organs. (The…
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