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In Science Biology Physics chemistry Online test mcqs with solved questions answers chapter wise.

Photosynthesis Practice Test Online Question Answer

Photosynthesis is the process by which plants, some bacteria, and some protistans use the energy from sunlight to produce sugar, which cellular respiration converts into ATP, the fuel used by all living things.Photosynthesis takes in the carbon dioxide produced by all breathing organisms and reintroduces oxygen into the atmosphere. Photosynthesis ...

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Enzymes Test Online Question Answer

Enzymes are protein molecules in cells which work as catalysts. It is speed up chemical reactions in the body, but do not get used up in the process. Almost all biochemical reactions in living things need enzymes. With an enzyme, chemical reactions go much faster than they would without the ...

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Heredity and Variation Mock Test Online Question Answer

Heredity and Variation Definition. All living organisms reproduce. Reproduction results in the formation of offspring of the same kind. A pea plant produces only pea plants each time it reproduces.The scientific study of heredity, variations and the environmental factors responsible for these, is known as genetics.The Study of Heredity. A ...

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Common Human Disease Info Test Online Question Answer

Diseases can also be classified as communicable and non-communicable. The deadliest diseases in humans are coronary artery disease  followed by cerebrovascular disease and lower respiratory infections.In humans, disease is often used more broadly to refer to any condition that causes pain, dysfunction, distress, social problems, or death to the person ...

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Gymnosperms Test Online Question Answer

In our fruit section we say that, by definition, fruits are the structures that develop from maturing flower ovaries, and seeds develop from ovules inside the ovaries. Therefore, since gymnosperms have no ovaries, they do not produce real fruits, at least not in the botanical sense.Gymnosperms were the first seed ...

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Circulation of Body Fluid Practice Test Online Question Answer

The passage of lymph for example takes much longer than that of blood. Blood is a fluid consisting of plasma, red blood cells, white blood cells, and platelets that is circulated by the heart through the vertebrate vascular system, carrying oxygen and nutrients to and waste materials away from all ...

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Gene Expression and Regulation Test Online Mcqs

Gene expression is the process by which information from a gene is used in the synthesis of a functional gene product. These products are often proteins, but in non-protein coding genes such as transfer RNA  or small nuclear RNA genes, the product is a functional RNA.Most mechanisms that control gene ...

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