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Alpha vs Beta Receptors   Catelocholamines are the sympathetic neurohumodal transmitters including noradrenaline and dopamine. These chemicals interact directly with receptors on the cell membrane in order to complete their action. This interaction is a vital step in the mechanisms of action of catecholamines,... 
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Estradiol vs Estrogen   Estrogen is a type of steroid sex hormone, which serves in many tissues, affecting both female and male physiology. Estradiol is considered as a type of estrogen. However, there are another two main types of estrogens; estrone and estriol. Estriol is the least effective hormone and... 
Difference Between Testosterone and Steroids
Testosterone vs Steroids   Hormone is a secretion of ductless gland that can regulate physiological, morphological and biochemical actions upon the release and transportation to target cells or organs through the blood stream. Hormones can be classified into three categories based on their chemical nature;... 
Difference Between Hyphae and Mycelium
Hyphae vs Mycelium   Fungi are eukaryotic heterotrophs that have cell walls made up of chitin. Because of this characteristic features, they are classified in a separate Kingdom called Kingdom Fungi. In this Kingdom, there are more than 7000 species that have been identified so far; there may be more to find. Similar... 
 Difference Between Mitochondria and Plastids
Mitochondria vs Plastids   Mitochondria (singular – mitochondrion) and plastids are two important membrane bound organelles located inside the eukaryotic cells (cells that contain organized nucleus). Mitochondrion is the place where cell utilizes sugar molecules to produce high energy containing molecules... 
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Monocyte vs Macrophage   The immune system is composed of few types of cells including lymphocytes, macrophages, monocytes, neutrophils, and other cells such as basophils, eosinophils, and natural killer cells. Macrophages and monocytes are the large irregular shaped white blood cells, which stimulate antibody... 
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Amniotic Fluid vs Urine   Amniotic fluid and urine are two important fluids in the animal body. They serve many functions in the body. However, the main component of these two fluids is water. The anatomy and physiology of urine and amniotic fluid vary widely. Amniotic Fluid Amniotic fluid is a colorless... 
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Fungi vs Parasites   Both fungi and parasites cause various diseases to humans. Not only humans, but parasites cause diseases to other animals and plants, as well. Parasites are the organisms which are adapted to a mode of life called parasitism, which is categorized as a type of symbiotic relationship between... 
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Testosterone vs Estrogen   Even though testosterone and estrogen are called ‘male’ and female’ hormones respectively, both males and females produce both these hormones in their adrenal glands. However, female testosterone levels are very low (ten times less than that of men), and most of the time they are... 
Difference Between Melanin and Melatonin
Melanin vs Melatonin   Melanin and melatonin are two chemically related substances, but with many different characteristic features. Their origin, function, chemical composition and location in the human body vary widely, and which will be discussed here in detail. What is Melanin? Melanin is one of the major pigments... 
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Determinate vs Indeterminate Tomatoes   The growth habit is important when choosing the variety of tomato to grow. All the tomato varieties fall into four basic categories based on the plant size and production of fruits. They are determinate, indeterminate, dwarf and dwarf- indeterminate. Out of these four... 
Difference Between Synapsis and Crossing Over
Synapsis vs Crossing Over   Synapsis and crossing-over are two interrelated processes, which are important to make chromosomal mutations. Mutations are the changes of the nucleotide sequence of genome of organisms. They are the main reason for the great deal of variation among offspring. Mutations can occur either... 
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Osmosis vs Active Transport   Survival of a cell depends on the balance between its internal and external environments. To maintain this balance, cells need to transport substances across or through cell membranes.  There are four processes involving to achieve this task, namely; simple diffusion, active transport,... 
Difference Between Sugar and Starch
Starch vs Sugar    Starch and sugars are two types of carbohydrates found in food. Carbohydrates are the organic compounds, made up of carbon (c), hydrogen (H), and oxygen (O) in the ratio of one oxygen atom and two hydrogen atoms for every one carbon atom (CH2O). This ratio is characteristic for each and every... 
Difference Between Monocot and Dicot Seeds
Monocot vs Dicot Seeds   In flowering plants, seed is defined as the mature ovule after fertilization. All seeds contain an embryo, which is a living plant. They also contain foods to nourish this living part in them. The seed cover basically helps to protect the embryo until it finds a proper location to... 
Difference Between Organ and Organelle
 Organ vs Organelle   In biological systems, all the organisms are made by physiological systems, which are part of a hierarchy of levels of organization. These levels of organization of biological system include organelles, cells, tissues, organs, and organ system. Each level has its unique morphology and structure... 
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